UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2020

☐Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from to .

Commission file number: 001-34877

CoreSite Realty Corporation

(Exact name of registrant as specified in its charter)

Maryland		27-1925611
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

1001 17th Street, Suite 500 Denver, CO		80202
(Address of principal executive offices)		(Zip Code)

(866) 777-2673

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:


Title of Each Class	Trading Symbol	Name of each exchange on which registered
Common Stock, $0.01 par value per share	COR	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer ☒

Accelerated filer ☐

Non-accelerated filer ☐

Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The number of shares of common stock outstanding at October 28, 2020, was 42,766,575.

Table of Contents

CORESITE REALTY CORPORATION

FORM 10-Q

FOR THE QUARTER ENDED September 30, 2020

TABLE OF CONTENTS

six
		PAGE
		NO.

PART I. FINANCIAL INFORMATION		3

ITEM 1. Financial Statements		3

Condensed Consolidated Balance Sheets as of September 30, 2020, and December 31, 2019 (unaudited)		3

Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2020, and 2019 (unaudited)		4

Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2020, and 2019 (unaudited)		5

Condensed Consolidated Statements of Equity for the three months ended March 31, June 30, and September 30, 2020, and 2019 (unaudited)		6

Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2020, and 2019 (unaudited)		7

Notes to Condensed Consolidated Financial Statements (unaudited)		8

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations		24

ITEM 3. Quantitative and Qualitative Disclosures About Market Risk		40

ITEM 4. Controls and Procedures		40

PART II. OTHER INFORMATION		41

ITEM 1. Legal Proceedings		41

ITEM 1A. Risk Factors		41

ITEM 2. Unregistered Sales of Equity Securities and Use of Proceeds		42

ITEM 3. Defaults Upon Senior Securities		42

ITEM 4. Mine Safety Disclosures		42

ITEM 5. Other Information		42

ITEM 6. Exhibits		43

Signatures		44

Exhibit 31.1
Exhibit 31.2
Exhibit 32.1
Exhibit 32.2
EX-101 INSTANCE DOCUMENT
EX-101 SCHEMA DOCUMENT
EX-101 CALCULATION LINKBASE DOCUMENT
EX-101 LABELS LINKBASE DOCUMENT
EX-101 PRESENTATION LINKBASE DOCUMENT
EX-101 DEFINITION LINKBASE DOCUMENT

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PART I — FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

CORESITE REALTY CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited and in thousands except share and per share data)


	September 30,		December 31,
	2020		2019
ASSETS
Investments in real estate:
Land	$	100,432	$	94,593
Buildings and improvements		2,148,435		1,989,731
		2,248,867		2,084,324
Less: Accumulated depreciation and amortization		(829,055)		(720,498)
Net investment in operating properties		1,419,812		1,363,826
Construction in progress		415,210		394,474
Net investments in real estate		1,835,022		1,758,300
Operating lease right-of-use assets, net		166,807		172,976
Cash and cash equivalents		2,894		3,048
Accounts and other receivables, net of allowance for doubtful accounts of $783 and $371 as of September 30, 2020, and December 31, 2019, respectively		31,388		21,008
Lease intangibles, net of accumulated amortization of $4,535 and $4,022 as of September 30, 2020, and December 31, 2019, respectively		2,959		3,939
Goodwill		40,646		40,646
Other assets, net		103,262		101,082
Total assets	$	2,182,978	$	2,100,999

LIABILITIES AND EQUITY
Liabilities:
Debt, net of unamortized deferred financing costs of $8,190 and $9,098 as of September 30, 2020, and December 31, 2019, respectively	$	1,686,810	$	1,478,402
Operating lease liabilities		182,068		187,443
Accounts payable and accrued expenses		91,310		123,304
Accrued dividends and distributions		62,796		62,332
Acquired below-market lease contracts, net of accumulated amortization of $1,634 and $1,511 as of September 30, 2020, and December 31, 2019, respectively		2,362		2,511
Unearned revenue, prepaid rent and other liabilities		54,848		33,119
Total liabilities		2,080,194		1,887,111
Stockholders' equity:
Common Stock, par value $0.01, 100,000,000 shares authorized and 42,766,487 and 37,701,042 shares issued and outstanding at September 30, 2020, and December 31, 2019, respectively		422		373
Additional paid-in capital		551,227		512,324
Accumulated other comprehensive loss		(22,355)		(6,026)
Distributions in excess of net income		(439,028)		(348,509)
Total stockholders' equity		90,266		158,162
Noncontrolling interests		12,518		55,726
Total equity		102,784		213,888
Total liabilities and equity	$	2,182,978	$	2,100,999

See accompanying notes to condensed consolidated financial statements.

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CORESITE REALTY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited and in thousands except share and per share data)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Operating revenues:
Data center revenue:
Rental, power, and related revenue	$	130,300	$	122,598	$	381,913	$	361,534
Interconnection revenue		21,144		19,082		62,126		56,274
Office, light-industrial and other revenue		2,537		3,211		7,847		8,884
Total operating revenues		153,981		144,891		451,886		426,692
Operating expenses:
Property operating and maintenance		44,986		41,251		126,206		117,428
Real estate taxes and insurance		5,989		4,973		17,778		17,157
Depreciation and amortization		41,759		40,546		124,529		113,188
Sales and marketing		5,901		5,476		17,882		16,912
General and administrative		10,854		10,671		33,724		33,123
Rent		8,966		8,331		26,360		23,752
Total operating expenses		118,455		111,248		346,479		321,560
Operating income		35,526		33,643		105,407		105,132
Interest expense		(11,384)		(10,986)		(33,153)		(30,795)
Income before income taxes		24,142		22,657		72,254		74,337
Income tax expense		(10)		(13)		(46)		(45)
Net income	$	24,132	$	22,644	$	72,208	$	74,292
Net income attributable to noncontrolling interests		3,000		5,194		12,557		17,646
Net income attributable to common shares	$	21,132	$	17,450	$	59,651	$	56,646
Net income per share attributable to common shares:
Basic	$	0.50	$	0.47	$	1.50	$	1.55
Diluted	$	0.50	$	0.47	$	1.49	$	1.54
Weighted average common shares outstanding
Basic		42,234,534		36,950,950		39,823,394		36,589,593
Diluted		42,404,396		37,132,155		39,995,993		36,763,241

See accompanying notes to condensed consolidated financial statements.

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CORESITE REALTY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(unaudited and in thousands)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Net income	$	24,132	$	22,644	$	72,208	$	74,292
Other comprehensive (loss) income:
Unrealized (loss) gain on derivative contracts		4		(463)		(21,394)		(5,608)
Reclassification of other comprehensive income (loss) to interest expense		1,836		137		3,149		(44)
Comprehensive income		25,972		22,318		53,963		68,640
Comprehensive income attributable to noncontrolling interests		3,224		5,125		7,916		16,293
Comprehensive income attributable to CoreSite Realty Corporation	$	22,748	$	17,193	$	46,047	$	52,347

See accompanying notes to condensed consolidated financial statements.

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CORESITE REALTY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(unaudited and in thousands except share data)


						Accumulated
				Additional		Other		Distributions		Total
	Common Shares			Paid-in		Comprehensive		in Excess of		Stockholders'		Noncontrolling		Total
	Number	Amount		Capital		Income (Loss)		Net Income		Equity		Interests		Equity
Balance at January 1, 2020	37,701,042	$	373	$	512,324	$	(6,026)	$	(348,509)	$	158,162	$	55,726	$	213,888
Redemption of noncontrolling interests	2,140		—		11		—		—		11		(11)		—
Issuance of stock awards, net of forfeitures	199,541		—		—		—		—		—		—		—
Exercise of stock options	3,210		—		73		—		—		73		—		73
Share-based compensation	—		1		3,725		—		—		3,726		—		3,726
Dividends and distributions	—		—		—		—		(46,174)		(46,174)		(13,139)		(59,313)
Net income	—		—		—		—		17,848		17,848		5,140		22,988
Other comprehensive loss	—		—		—		(13,132)		—		(13,132)		(3,782)		(16,914)
Balance at March 31, 2020	37,905,933	$	374	$	516,133	$	(19,158)	$	(376,835)	$	120,514	$	43,934	$	164,448
Redemption of noncontrolling interests	4,620,000		46		25,105		(2,594)		—		22,557		(22,557)		—
Issuance of stock awards, net of forfeitures	(1,185)		—		—		—		—		—		—		—
Exercise of stock options	8,672		—		99		—		—		99		—		99
Share-based compensation	—		—		4,477		—		—		4,477		—		4,477
Dividends and distributions	—		—		—		—		(51,857)		(51,857)		(7,502)		(59,359)
Net income	—		—		—		—		20,671		20,671		4,417		25,088
Other comprehensive loss	—		—		—		(2,088)		—		(2,088)		(1,083)		(3,171)
Balance at June 30, 2020	42,533,420	$	420	$	545,814	$	(23,840)	$	(408,021)	$	114,373	$	17,209	$	131,582
Redemption of noncontrolling interests	230,172		2		822		(131)		—		693		(693)		—
Issuance of stock awards, net of forfeitures	(5,037)		—		—		—		—		—		—		—
Exercise of stock options	7,932		—		126		—		—		126		—		126
Share-based compensation	—		—		4,465		—		—		4,465		—		4,465
Dividends and distributions	—		—		—		—		(52,139)		(52,139)		(7,222)		(59,361)
Net income	—		—		—		—		21,132		21,132		3,000		24,132
Other comprehensive income	—		—		—		1,616		—		1,616		224		1,840
Balance at September 30, 2020	42,766,487	$	422	$	551,227	$	(22,355)	$	(439,028)	$	90,266	$	12,518	$	102,784


						Accumulated
				Additional		Other		Distributions		Total
	Common Shares			Paid-in		Comprehensive		in Excess of		Stockholders'		Noncontrolling		Total
	Number	Amount		Capital		Income (Loss)		Net Income		Equity		Interests		Equity
Balance at January 1, 2019	36,708,691	$	363	$	491,314	$	(2,193)	$	(246,929)	$	242,555	$	92,078	$	334,633
Issuance of stock awards, net of forfeitures	192,009		—		—		—		—		—		—		—
Exercise of stock options	1,129		—		17		—		—		17		—		17
Share-based compensation	—		1		3,592		—		—		3,593		—		3,593
Dividends and distributions	—		—		—		—		(40,581)		(40,581)		(12,733)		(53,314)
Net income	—		—		—		—		19,661		19,661		6,244		25,905
Other comprehensive loss	—		—		—		(3,540)		—		(3,540)		(1,124)		(4,664)
Balance at March 31, 2019	36,901,829	$	364	$	494,923	$	(5,733)	$	(267,849)	$	221,705	$	84,465	$	306,170
Redemption of noncontrolling interests	2,770		—		20		—		—		20		(20)		—
Issuance of stock awards, net of forfeitures	(15,567)		—		—		—		—		—		—		—
Exercise of stock options	1,339		—		21		—		—		21		—		21
Share-based compensation	—		—		3,864		—		—		3,864		—		3,864
Dividends and distributions	—		—		—		—		(44,895)		(44,895)		(14,118)		(59,013)
Net income	—		—		—		—		19,535		19,535		6,208		25,743
Other comprehensive loss	—		—		—		(502)		—		(502)		(160)		(662)
Balance at June 30, 2019	36,890,371	$	364	$	498,828	$	(6,235)	$	(293,209)	$	199,748	$	76,375	$	276,123
Redemption of noncontrolling interests	800,840		8		5,394		(174)		—		5,228		(5,228)		—
Issuance of stock awards, net of forfeitures	(3,983)		—		—		—		—		—		—		—
Exercise of stock options	1,154		—		28		—		—		28		—		28
Share-based compensation	—		1		3,959		—		—		3,960		—		3,960
Dividends and distributions	—		—		—		—		(45,961)		(45,961)		(13,142)		(59,103)
Net income	—		—		—		—		17,450		17,450		5,194		22,644
Other comprehensive loss	—		—		—		(257)		—		(257)		(69)		(326)
Balance at September 30, 2019	37,688,382	$	373	$	508,209	$	(6,666)	$	(321,720)	$	180,196	$	63,130	$	243,326

See accompanying notes to condensed consolidated financial statements.

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CORESITE REALTY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited and in thousands)


	Nine Months Ended September 30,
	2020		2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	72,208	$	74,292
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		124,529		113,188
Amortization of above/below market leases		(102)		(219)
Amortization of deferred financing costs and hedge amortization		3,100		2,368
Share-based compensation		11,810		10,781
Bad debt expense		890		106
Changes in operating assets and liabilities:
Accounts receivable		(11,271)		(7,971)
Deferred rent receivable		(1,252)		4,218
Initial direct costs		(13,517)		(9,727)
Other assets		(3,642)		(8,395)
Accounts payable and accrued expenses		8,195		15,800
Unearned revenue, prepaid rent and other liabilities		3,043		(8,765)
Operating leases		801		2,035
Net cash provided by operating activities		194,792		187,711
CASH FLOWS FROM INVESTING ACTIVITIES
Tenant improvements		(4,555)		(3,167)
Real estate improvements		(219,512)		(239,526)
Business combinations and asset acquisitions		—		(26,060)
Net cash used in investing activities		(224,067)		(268,753)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options		298		66
Proceeds from revolving credit facility		201,000		286,250
Payments on revolving credit facility		(143,500)		(435,500)
Proceeds from unsecured debt		150,000		400,000
Payments of loan fees and costs		(1,108)		(2,344)
Dividends and distributions		(177,569)		(165,326)
Net cash provided by financing activities		29,121		83,146
Net change in cash and cash equivalents		(154)		2,104
Cash and cash equivalents, beginning of period		3,048		2,599
Cash and cash equivalents, end of period	$	2,894	$	4,703
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest, net of capitalized amounts	$	33,816	$	21,686
Cash paid for operating lease liabilities	$	20,108	$	18,581
NON-CASH INVESTING AND FINANCING ACTIVITY
Construction costs payable capitalized to real estate	$	25,537	$	65,964
Accrual of dividends and distributions	$	62,796	$	61,783
NON-CASH OPERATING ACTIVITY
Lease liabilities arising from obtaining right-of-use assets	$	7,935	$	1,035

See accompanying notes to condensed consolidated financial statements.

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CORESITE REALTY CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2020

(unaudited)

1. Organization and Description of Business

CoreSite Realty Corporation (the “Company,” “we,” “us,” or “our”) was organized in the State of Maryland on February 17, 2010, and is a fully-integrated, self-administered, and self-managed real estate investment trust (“REIT”). Through our controlling interest in CoreSite, L.P. (our “Operating Partnership”), we are engaged in the business of owning, acquiring, constructing and operating data centers. As of September 30, 2020, the Company owned an 87.7% common interest in our Operating Partnership, and affiliates of The Carlyle Group and others owned a 12.3% interest in our Operating Partnership. See additional discussion in Note 10, Noncontrolling Interests – Operating Partnership.

2. Summary of Significant Accounting Policies

Principles of Consolidation and Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared by our management in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in compliance with the rules and regulations of the U.S. Securities and Exchange Commission. Accordingly, these unaudited condensed consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of our management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. The results of operations for the three and nine months ended September 30, 2020, are not necessarily indicative of the expected results for the year ending December 31, 2020, or any other future period. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019.

Our Operating Partnership meets the definition and criteria of a variable interest entity (“VIE”) and we are the primary beneficiary of the VIE. Our sole significant asset is the investment in our Operating Partnership, and consequently, substantially all of our assets and liabilities represent those assets and liabilities of our Operating Partnership. Our debt is an obligation of our Operating Partnership where the creditors also have recourse against the credit of the Company. Intercompany balances and transactions have been eliminated upon consolidation.

Recently Adopted Accounting Pronouncements

Fair Value Measurement

In August 2018, the Financial Accounting Standards Board (“FASB”) issued guidance codified in Accounting Standards Update (“ASU”) 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement. ASU 2018-13 improves the overall usefulness of disclosures to financial statement users and reduces unnecessary costs in preparing fair value measurement disclosures. The standard became effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted. We adopted the standard effective January 1, 2020, and the provisions of ASU 2018-13 did not have a material impact on our condensed consolidated financial statements.

Intangibles – Goodwill and Other – Internal-Use Software

In August 2018, the FASB issued guidance codified in ASU 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. ASU 2018-15 clarifies that implementation costs incurred by customers in cloud computing arrangements are deferred if they would be capitalized by customers in software licensing arrangements under the internal-use software guidance. Additionally, ASU 2018-15 clarifies that all capitalized costs must be presented in the same financial statement line item as the cloud computing arrangement. We adopted the standard effective January 1, 2020, on a prospective basis, and the provisions of ASU 2018-15 did not have a material impact on our condensed consolidated financial statements.

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Financial Instruments – Credit Losses

In June 2016, the FASB issued guidance codified in ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. ASU 2016-13 introduced the “current expected credit losses” model, which requires companies to estimate credit losses immediately upon exposure. The guidance applies to financial assets measured at amortized cost, including financing receivables and trade receivables. In November 2018, the FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments – Credit Losses, which clarified that operating leases are outside the scope of Topic 326, and instead should be accounted for under ASC 842. The standard became effective, for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted. We adopted the standard effective January 1, 2020, on a prospective basis, and the provisions of ASU 2016-13 and ASU 2018-19 did not have a material impact on our condensed consolidated financial statements.

Recent Accounting Pronouncements Not Yet Adopted

Reference Rate Reform

In March 2020, the FASB issued guidance codified in ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. ASU 2020-04 provides optional expedients for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. ASU 2020-04 provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The standard is effective for all entities as of March 12, 2020 through December 31, 2022. An entity can elect to apply the amendments as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to that date that the financial statements are available to be issued. We are currently evaluating the optional expedients and exceptions provided by ASU 2020-04 to determine the impact on our condensed consolidated financial statements.

We determined that all other recently issued accounting pronouncements will not have a material impact on our condensed consolidated financial statements or do not apply to our operations.

Use of Estimates

The preparation of these unaudited condensed consolidated financial statements, in conformity with GAAP, requires our management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingencies at the date of the unaudited condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. We evaluate our estimates, including those related to assessing our standalone selling prices, performance-based equity compensation plans and the carrying values of our real estate properties, goodwill, and accrued liabilities. We base our estimates on historical experience, current market conditions, and various other assumptions that we believe to be reasonable under the circumstances. Actual results may vary from those estimates and those estimates could vary under different assumptions or conditions.

Investments in Real Estate

Real estate investments are carried at cost less accumulated depreciation and amortization. The cost of real estate includes the purchase price of property and leasehold improvements. Expenditures for maintenance and repairs are expensed as incurred. Significant renovations and betterments that extend the economic useful lives of assets are capitalized. During land development and construction periods, we capitalize construction costs, legal fees, financing costs, real estate taxes and insurance, rent expense and internal costs of personnel performing development, if such costs are incremental and identifiable to a specific development project. Capitalization of costs begins upon commencement of development efforts and ceases when the project is ready for its intended use and held available for occupancy. Interest is capitalized during the period of development based upon applying the weighted-average borrowing rate to the actual development costs expended. Capitalized interest costs were $3.2 million and $3.7 million for the three months ended September 30, 2020, and 2019, respectively. Capitalized interest costs were $9.9 million and $10.0 million for the nine months ended September 30, 2020, and 2019, respectively.

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Depreciation and amortization are calculated using the straight-line method over the following useful lives of the assets:


Buildings		27 to 40 years
Building improvements		1 to 10 years
Leasehold improvements		The shorter of the lease term or useful life of the asset

Depreciation expense was $38.2 million and $35.1 million for the three months ended September 30, 2020, and 2019, respectively. Depreciation expense was $112.9 million and $100.1 million for the nine months ended September 30, 2020, and 2019, respectively.

Acquisition of Investment in Real Estate

When accounting for business combinations and asset acquisitions, the fair value of the real estate acquired is allocated to the acquired tangible assets, consisting primarily of land, building and building improvements, and identified intangible assets and liabilities, consisting of the value of above-market and below-market leases, value of in-place leases and the value of customer relationships. The primary difference between business combinations and asset acquisitions is that asset acquisitions require cost accumulation and allocation at a relative fair value. Acquisition costs are capitalized for asset acquisitions and are expensed for business combinations.

The fair value of the land and building of an acquired property is determined by valuing the property as if it were vacant, and the “as-if-vacant” fair value is then allocated to land and building based on management's determination of the fair values of these assets. Management determines the as-if-vacant fair value of a property using methods similar to those used by independent appraisers. Factors considered by management in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases.

The fair value of intangibles related to in-place leases includes the value of lease intangibles for above-market and below-market leases, lease origination costs, and customer relationships, determined on a lease-by-lease basis. Above-market and below-market leases are valued based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management's estimate of market lease rates for the corresponding in-place leases, measured over a period equal to the remaining noncancelable term of the lease and, for below-market leases, over a time period equal to the initial term plus any below-market fixed rate renewal periods. Lease origination costs include estimates of costs avoided associated with leasing the property, including tenant allowances and improvements and leasing commissions. Customer relationship intangibles relate to the additional revenue opportunities expected to be generated through rental services, interconnection services, and utility services to be provided to the in-place lease tenants.

The capitalized values for above and below-market lease intangibles, lease origination costs, and customer relationships are amortized over the term of the underlying leases or the expected customer relationship. Amortization related to above-market and below-market leases where the Company is the lessor is recorded as either a reduction of or an increase to rental revenue, amortization related to above-market and below-market leases where the Company is the lessee is recorded as either a reduction of or an increase to rent expense. If a lease is terminated prior to its stated expiration, all unamortized amounts relating to that lease are written off.

The carrying value of intangible assets is reviewed for impairment in connection with its respective asset group whenever events or changes in circumstances indicate that the asset group may not be recoverable. An impairment loss is recognized if the carrying amount of the asset group is not recoverable and its carrying amount exceeds its estimated fair value. No impairment loss related to these intangible assets was recognized for the three or nine months ended September 30, 2020, or 2019.

The excess of the cost of an acquired business over the net of the amounts assigned to assets acquired (including identified intangible assets) and liabilities assumed is recorded as goodwill. As of September 30, 2020, and December 31, 2019, we had $40.6 million of goodwill at each date. The Company’s goodwill has an indeterminate life and is not amortized, but is tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate that the asset might be impaired. No impairment loss was recognized for the three or nine months ended September 30, 2020, or 2019.

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Cash and Cash Equivalents

Cash and cash equivalents include all non-restricted cash held in financial institutions and other non-restricted highly liquid short-term investments with original maturities at acquisition of three months or less.

Initial Direct Costs

Initial direct costs include commissions paid to third parties, including brokers, leasing and referral agents, and internal sales commissions paid to employees for successful execution of customer lease agreements. Initial direct costs are incremental costs that would not have been incurred if the lease agreement had not been executed. These initial direct costs are capitalized and generally amortized over the term of the related leases using the straight-line method. If a customer lease terminates prior to the expiration of its initial term, any unamortized initial direct costs related to the lease are written off to amortization expense. Amortization of initial direct costs was $2.8 million and $4.0 million for the three months ended September 30, 2020, and 2019, respectively. Amortization of initial direct costs was $9.8 million and $10.8 million for the nine months ended September 30, 2020, and 2019, respectively. Initial direct costs are included within other assets in the condensed consolidated balance sheets and consisted of the following, net of amortization, as of September 30, 2020, and December 31, 2019 (in thousands):


	September 30,		December 31,
	2020		2019
Internal sales commissions	$	15,472	$	15,064
Third party commissions		12,720		10,845
Other		383		462
Total	$	28,575	$	26,371

Deferred Financing Costs

Deferred financing costs include costs incurred in connection with obtaining debt and extending existing debt. These financing costs are capitalized and amortized on a straight-line basis, which approximates the effective-interest method, over the term of the indebtedness and the amortization is included as a component of interest expense. Depending on the type of debt instrument, deferred financing costs are reported either in other assets or as a direct deduction from the carrying amount of the related debt liabilities in our condensed consolidated balance sheets.

Recoverability of Long-Lived Assets

We review our long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Impairment is recognized when estimated expected future cash flows (undiscounted and without interest charges) are less than the carrying amount of the assets. The estimation of expected future net cash flows is inherently uncertain and relies, to a considerable extent, on assumptions regarding current and future economics and market conditions and the availability of capital. If, in future periods, there are changes in the estimates or assumptions incorporated into the impairment review analysis, the changes could result in an adjustment to the carrying amount of the long-lived assets. To the extent that impairment has occurred, the excess of the carrying amount of long-lived assets over their estimated fair value would be recognized as an impairment loss charged to net income. For the three and nine months ended September 30, 2020, and 2019, no impairment of long-lived assets was recognized in the condensed consolidated financial statements.

Derivative Instruments and Hedging Activities

We reflect all derivative instruments at fair value as either assets or liabilities on the condensed consolidated balance sheets. For those derivative instruments that are designated and qualify as hedging instruments, we record the gain or loss on the hedging instruments as a component of accumulated other comprehensive income or loss. For derivatives that do not meet the criteria for hedge accounting, changes in fair value are immediately recognized within net income. See additional discussion in Note 8, Derivatives and Hedging Activities.

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Internal-Use Software

We recognize internal-use software development costs based on the development stage of the project and nature of the cost. Internal and external costs incurred during the preliminary project stage are expensed as they are incurred. Internal and external costs incurred to develop internal-use software during the application development stage are capitalized. Internal and external training costs and maintenance costs during the post-implementation-operation stage are expensed as incurred. Completed projects are placed into service and amortized over the estimated useful life of the software. No impairment of internal-use software was recognized in the condensed consolidated financial statements for the three and nine months ended September 30, 2020, and 2019.

Revenue Recognition

Rental, Power, and Related Revenue

We derive our revenues from leases with customers for data center and office and light-industrial space. Our leases include rental revenue lease components and nonlease revenue components, such as power and tenant reimbursements. We have elected to combine all of our nonlease revenue components that have the same pattern of transfer as the related operating lease component into a single combined lease component.

Our leases with customers are classified as operating leases and rental revenue is recognized on a straight-line basis over the customer lease term. Occasionally, our customer leases include options to extend or terminate the lease agreements. We do not include any of these extension or termination options in a customer’s lease term for lease classification purposes or for recognizing rental revenue unless we are reasonably certain the customer will exercise these extension or termination options. The excess of rents recognized over amounts contractually due pursuant to the underlying leases is recorded as deferred rent receivable within other assets on our condensed consolidated balance sheets.

In general, we provide two power products for our data center leased space, consisting of a fixed (breakered-amperage) and a variable (sub-metered) model. Customer power arrangements are coterminous with the customer’s underlying lease and have the same pattern of transfer over the lease term and are therefore combined with lease revenue within our condensed consolidated statements of operations. For fixed power arrangements, a customer pays us a fixed monthly fee for a committed available amount of power. We recognize the fixed power revenue each month over the term of the lease. For variable power arrangements, a customer pays us variable monthly fees for the specific amount of power utilized at the current utility rates. We recognize variable power revenue each month as the uncertainty related to the consideration is resolved, as power is provided to our customers, and as our customers utilize the power.

Some of our leases contain provisions under which our customers reimburse us for common area maintenance and other executory costs. These customer reimbursements are variable and are recognized in the period that the expenses are recognized. These services have the same pattern of transfer over the lease term and are also combined with lease revenue within our condensed consolidated statements of operations.

Interconnection Revenue

We also derive revenue from interconnection services, which are generally contracted on a month-to-month basis cancellable by us or the customer at any time. Interconnection services are accounted for as separate contracts and are not combined with lease and power arrangements. We recognize interconnection revenue each month as these services are delivered to, and utilized by, our customers.

Allowance for Doubtful Accounts

A provision for uncollectible accounts is recorded if the collectability of a receivable balance relating to contractual rent, rental revenue recorded on a straight-line basis, tenant reimbursements or other billed amounts is considered by management to not be probable. At September 30, 2020, and December 31, 2019, the allowance for doubtful accounts totaled $0.8 million and $0.4 million, respectively, on the condensed consolidated balance sheets.

Lessee Accounting

We determine if an arrangement is a lease at inception. Our operating lease agreements are primarily for real estate space and are included within operating lease right-of-use (“ROU”) assets and operating lease liabilities on the condensed

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consolidated balance sheets. We elected the practical expedient to combine our lease and related nonlease components for our lessee building leases.

ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. Our variable lease payments consist of nonlease services related to the lease. Variable lease payments are excluded from the ROU assets and lease liabilities and are recognized in the period in which the obligation for those payments is incurred. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. ROU assets also include any lease payments made and exclude lease incentives. Many of our lessee agreements include options to extend the lease, which we do not include in our minimum lease terms unless they are reasonably certain to be exercised. Rental expense for lease payments related to operating leases is recognized on a straight-line basis over the lease term.

Share-Based Compensation

We account for share-based compensation using the fair value method of accounting. The estimated fair value of the stock options granted by us is calculated based on the Black-Scholes option-pricing model. The fair value of restricted share-based and Operating Partnership unit compensation is based on the fair value of our common stock on the date of the grant. The fair value of performance share awards, which have a market condition, is based on a Monte Carlo simulation. The fair value for all share-based compensation is amortized on a straight-line basis over the vesting period. We have elected to account for forfeitures as they occur.

Asset Retirement and Environmental Remediation Obligations

We record accruals for estimated asset retirement and environmental remediation obligations. The obligations relate primarily to the removal of asbestos during development of properties as well as the estimated equipment removal costs upon termination of a certain lease where we are the lessee. At September 30, 2020, and December 31, 2019, the amount included in unearned revenue, prepaid rent and other liabilities on the condensed consolidated balance sheets was approximately $1.8 million and $1.7 million, respectively.

Income Taxes

We elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”), commencing with our taxable year ended December 31, 2010. To qualify as a REIT, we are required to distribute at least 90% of our taxable income to our stockholders and meet various other requirements imposed by the Code relating to such matters as operating results, asset holdings, distribution levels and diversity of stock ownership. Provided we qualify for taxation as a REIT, we generally are not subject to corporate level federal income tax on the earnings distributed currently to our stockholders. If we fail to qualify as a REIT in any taxable year, and are unable to avail ourselves of certain savings provisions set forth in the Code, all of our taxable income would be subject to federal income tax at regular corporate rates.

To maintain REIT status, we must distribute a minimum of 90% of our taxable income. However, it is our policy and intent, subject to change, to distribute 100% of our taxable income and therefore, no provision is required in the accompanying condensed consolidated financial statements for federal income taxes with regard to our activities and our subsidiary pass-through entities. The allocable share of taxable income is included in the income tax returns of its stockholders. We are subject to the statutory requirements of the locations in which we conduct business. State and local income taxes are accrued as deemed required in the best judgment of management based on analysis and interpretation of respective tax laws.

We have elected to treat certain subsidiaries as taxable REIT subsidiaries (“TRS”). Certain activities that we undertake must be conducted by a TRS, such as services for our tenants that could be considered otherwise impermissible for us to perform and holding assets that we cannot hold directly. A TRS is subject to corporate level federal and state income taxes.

Deferred income taxes are recognized in certain taxable entities. Deferred income tax generally is a function of the period’s temporary differences (items that are treated differently for tax purposes than for financial reporting purposes), the utilization of tax net operating losses generated in prior years that previously had been recognized as deferred income

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tax assets and the reversal of any previously recorded deferred income tax liabilities. A valuation allowance for deferred income tax assets is provided if we believe all or some portion of the deferred income tax asset may more likely than not be realized. Any increase or decrease in the valuation allowance resulting from a change in circumstances that causes a change in the estimated realizability of the related deferred income tax asset is included in deferred tax expense. As of September 30, 2020, and December 31, 2019, the gross deferred income taxes were not material.

We currently have no liabilities for uncertain income tax positions. The earliest tax year for which we are subject to examination is 2017.

Concentration of Credit Risks

Our cash and cash equivalents are maintained in various financial institutions, which, at times, may exceed federally insured limits. We have not experienced any losses in such accounts, and management believes that the Company is not exposed to any significant credit risk in this area. We have no off-balance sheet concentrations of credit risk, such as foreign exchange contracts, option contracts, or foreign currency hedging arrangements.

Segment Information

We manage our business as one reportable segment consisting of investments in data centers located in the United States. Although we provide services in several markets, these operations have been aggregated into one reportable segment based on the similar economic characteristics amongst all markets, including the nature of the services provided and the type of customers purchasing these services.

Risks and Uncertainties

The full extent of the operational and financial impact of the novel coronavirus (“COVID-19”) outbreak on our business has yet to be determined. The impact of the outbreak of COVID-19 is dependent on future developments, including, among other factors, the duration and spread of the outbreak, along with related government-mandated business shutdowns, travel advisories and restrictions on movement, the recovery time of general employment levels, disrupted supply chains, potentially material staffing shortages, construction and development delays, and uncertainty with respect to accessibility of additional funding sources. In addition, some of our customers and prospective customers are dependent on areas of the economy that have been significantly impacted by the outbreak of COVID-19, which may impact their ability to comply with their rent obligations or their demand for additional space and power from us. As of September 30, 2020, we have not recognized a material loss, impairment, or contingency within our condensed consolidated financial statements as a result of the COVID-19 pandemic.

3. Investment in Real Estate

The following is a summary of the properties owned or leased by market at September 30, 2020 (in thousands):


			Buildings and		Construction in
Market	Land		Improvements		Progress		Total Cost
Boston	$	5,154	$	120,150	$	11,862	$	137,166
Chicago		7,059		178,441		59,746		245,246
Denver		—		35,255		849		36,104
Los Angeles		18,672		380,659		126,933		526,264
Miami		728		14,660		—		15,388
New York		2,729		177,197		70,191		250,117
Northern Virginia		21,856		404,420		106,581		532,857
San Francisco Bay		44,234		837,653		39,048		920,935
Total	$	100,432	$	2,148,435	$	415,210	$	2,664,077

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The following is a summary of the properties owned or leased by market at December 31, 2019 (in thousands):


Market	Land		Buildings and Improvements		Construction in Progress		Total Cost
Boston	$	5,154	$	119,227	$	931	$	125,312
Chicago		5,493		115,699		100,118		221,310
Denver		—		32,659		2,461		35,120
Los Angeles		18,672		376,525		60,178		455,375
Miami		728		14,491		133		15,352
New York		2,729		155,746		56,271		214,746
Northern Virginia		21,856		398,742		101,619		522,217
San Francisco Bay		39,961		776,642		72,763		889,366
Total	$	94,593	$	1,989,731	$	394,474	$	2,478,798

4. Other Assets

Other assets consisted of the following, net of amortization and depreciation, if applicable for each line item, as of September 30, 2020, and December 31, 2019 (in thousands):


	September 30,		December 31,
	2020		2019
Deferred rent receivable	$	39,586	$	38,335
Initial direct costs		28,575		26,371
Internal-use software		14,323		16,747
Prepaid expenses		12,816		7,675
Corporate furniture, fixtures and equipment		4,726		4,848
Deferred financing costs - revolving credit facility		2,605		3,148
Other		631		3,958
Total	$	103,262	$	101,082

5. Leases

As the lessee, we currently lease real estate space under noncancelable operating lease agreements for our turn-key data centers at NY1, LA1, LA4, DC1, DC2, DE1, and DE2, and our corporate headquarters located in Denver, Colorado. Our leases have remaining lease terms ranging from less than 1 year to 15 years, some of the leases include options to extend the leases for up to an additional 20 years. We do not include any of our renewal options in our lease terms for calculating our lease liability as the renewal options allow us to maintain operational flexibility and we are not reasonably certain we will exercise these renewal options at this time. The weighted-average remaining non-cancelable lease term for our operating leases was nine years at September 30, 2020, and December 31, 2019. The weighted-average discount rate was 4.9% at each date.

During the nine months ended September 30, 2020, we extended the term of approximately 25,000 NRSF at our existing DC2 data center from July 2028 to July 2035. As a result of this extension, we remeasured the lease liability and adjusted the ROU asset by approximately $7.0 million.

The components of lease expense were as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Lease expense:
Operating lease expense	$	6,950	$	6,868	$	20,756	$	19,662
Variable lease expense		2,016		1,463		5,604		4,090
Rent expense	$	8,966	$	8,331	$	26,360	$	23,752

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6. Lease Revenue

The components of data center, office, light-industrial, and other lease revenue were as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Lease revenue:
Minimum lease revenue	$	108,878	$	103,518	$	322,647	$	304,813
Variable lease revenue		23,959		22,291		67,113		65,605
Total lease revenue	$	132,837	$	125,809	$	389,760	$	370,418

7. Debt

A summary of outstanding indebtedness as of September 30, 2020, and December 31, 2019, is as follows (in thousands):


		Maturity	September 30,		December 31,
	Interest Rate	Date	2020		2019
Revolving credit facility⁽¹⁾	1.40% and 3.01% at September 30, 2020, and December 31, 2019, respectively	November 8, 2023	$	120,000	$	62,500
2022 Senior unsecured term loan⁽²⁾⁽³⁾	1.76% and 2.96% at September 30, 2020, and December 31, 2019, respectively	April 19, 2022		200,000		200,000
2023 Senior unsecured notes	4.19% at September 30, 2020, and December 31, 2019, respectively	June 15, 2023		150,000		150,000
2024 Senior unsecured term loan⁽²⁾⁽³⁾	2.86% and 3.44% at September 30, 2020, and December 31, 2019, respectively	April 19, 2024		150,000		150,000
2024 Senior unsecured notes	3.91% at September 30, 2020, and December 31, 2019, respectively	April 20, 2024		175,000		175,000
2025 Senior unsecured term loan⁽²⁾⁽³⁾	2.32% and 2.81% at September 30, 2020, and December 31, 2019, respectively	April 1, 2025		350,000		350,000
2026 Senior unsecured notes⁽²⁾	4.52% at September 30, 2020, and December 31, 2019, respectively	April 17, 2026		200,000		200,000
2027 Senior unsecured notes	3.75% at September 30, 2020	May 6, 2027		150,000		—
2029 Senior unsecured notes	4.31% at September 30, 2020, and December 31, 2019, respectively	April 17, 2029		200,000		200,000
Total principal outstanding		`		1,695,000		1,487,500
Unamortized deferred financing costs				(8,190)		(9,098)
Total debt			$	1,686,810	$	1,478,402

(1)

Borrowings under the revolving credit facility bear interest at a variable rate per annum equal to either (i) LIBOR plus 125 basis points to 185 basis points, or (ii) a base rate plus 25 basis points to 85 basis points, each depending on our Operating Partnership’s leverage ratio. At September 30, 2020, our Operating Partnership’s leverage ratio was 32.3% and the interest rate was LIBOR plus 125 basis points.

(2)

Our Operating Partnership has in place swap agreements with respect to the term loans noted above, and previously had a forward starting swap agreement in place with respect to the 2026 senior unsecured notes. The interest rates presented represent the effective interest rates as of September 30, 2020, and December 31, 2019, including the impact of the interest rate swaps, which effectively fix the interest rate on a portion of our variable rate debt. See Note 8 – Derivatives and Hedging Activities.

(3)

Borrowings under the senior unsecured term loans bear interest at a variable rate per annum equal to either (i) LIBOR plus 120 basis points to 180 basis points, or (ii) a base rate plus 20 basis points to 80 basis points, each depending on our Operating Partnership’s leverage ratio. At September 30, 2020, our Operating Partnership’s leverage ratio was 32.3% and the interest rate was LIBOR plus 120 basis points.

Revolving Credit Facility

On November 8, 2019, our Operating Partnership and certain subsidiary co-borrowers entered into the Fifth Amended and Restated Credit Agreement (as amended and restated, the “Amended and Restated Credit Agreement”), consisting of a $450 million revolving credit facility, a $150 million senior unsecured term loan scheduled to mature on April 19, 2024, and a $350 million senior unsecured term loan scheduled to mature on April 1, 2025. The total amount available

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for borrowing under the revolving credit facility, is equal to the lesser of $450.0 million or the availability calculated based on our unencumbered asset pool. As of September 30, 2020, the borrowing capacity was $450.0 million. As of September 30, 2020, $120.0 million was borrowed and outstanding, $6.1 million was outstanding under letters of credit, and therefore $323.9 million remained available for us to borrow under the revolving credit facility.

Our ability to borrow under the Amended and Restated Credit Agreement is subject to ongoing compliance with a number of financial covenants and other customary restrictive covenants, including, among others:

●	a maximum leverage ratio (defined as total consolidated indebtedness to total gross asset value) of 60%, which, as of September 30, 2020, was 32.3%

●	a maximum secured debt ratio (defined as total consolidated secured debt to total gross asset value) of 40%, which, as of September 30, 2020, was 0.0%

●	a minimum fixed charge coverage ratio (defined as adjusted consolidated earnings before interest, taxes, depreciation and amortization to consolidated fixed charges) of 1.5 to 1.0, which, as of September 30, 2020, was 6.1 to 1.0.

2027 Senior Unsecured Notes

On May 6, 2020, our Operating Partnership agreed to issue an aggregate principal amount of $150 million, 3.75% Series C senior unsecured notes due May 6, 2027 (the “2027 Notes”), in a private placement to certain accredited investors. An aggregate principal amount of $100 million of the 2027 Notes was issued on May 6, 2020. The remaining $50 million was issued on July 14, 2020. The terms of the 2027 Notes are governed by a note purchase agreement, dated May 6, 2020 (the “2027 Note Purchase Agreement”), by and among our Operating Partnership, the Company and the purchasers of the 2027 Notes.

Interest is payable semiannually based on a fixed rate, on the 15^th day of June and December of each year, commencing on December 15, 2020. The 2027 Notes are unsecured obligations of the Operating Partnership and are jointly and severally guaranteed by the Company and each of the Subsidiary Guarantors.

Our Operating Partnership may prepay all or a portion of the 2027 Notes upon notice to the holders for 100% of the principal amount so prepaid plus a make-whole premium as set forth in the 2027 Note Purchase Agreement. Upon the occurrence of certain change of control events, holders of the 2027 Notes would have the right to require that the Operating Partnership purchase 100% of such holders’ 2027 Notes in cash at a purchase price equal to 100% of the principal amount thereof plus accrued and unpaid interest, if any, to the date of repurchase.

The 2027 Notes ranks pari passu with the each of the senior term loans, each of the senior notes, and the Amended and Restated Credit Agreement and contains the same financial covenants and other customary restrictive covenants as those debt instruments.

Debt Covenants

All of the Company’s debt instruments contain certain financial covenants and other customary restrictive covenants, including limitations on transactions with affiliates, merger, consolidation, and sales of assets, liens and subsidiary indebtedness. The Company’s financial covenants include maximum consolidated total unsecured indebtedness to unencumbered asset pool availability, minimum consolidated tangible net worth, a maximum ratio of consolidated total indebtedness to gross asset value, a minimum ratio of adjusted consolidated EBITDA to consolidated fixed charges, and a maximum ratio of secured indebtedness to gross asset value. As of September 30, 2020, we were in compliance with all of the financial covenants.

For further information on the Company’s debt instruments, see Note 8 – Debt to the consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on February 7, 2020.

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Debt Maturities

The following table summarizes when our debt currently becomes due as of September 30, 2020 (in thousands):


Year Ending December 31,
2020	$	—
2021		—
2022		200,000
2023		270,000
2024		325,000
Thereafter		900,000
Total principal outstanding		1,695,000
Unamortized deferred financing costs		(8,190)
Total debt, net	$	1,686,810

8. Derivatives and Hedging Activities

The following table summarizes our derivative positions as of September 30, 2020, and December 31, 2019 (in thousands):


Notional Amount											Fair Value (Level 2) ⁽¹⁾
September 30,		December 31,		Type of				Effective	Expiration		September 30,		December 31,
2020		2019		Derivative	Index	Strike Rate		Date	Date		2020		2019
$	—	$	75,000	Interest Rate Swap	1 mo. LIBOR	1.43	%	5/5/2015	5/5/2020	⁽²⁾	$	—	$	67
	75,000		75,000	Interest Rate Swap	1 mo. LIBOR	2.72		5/5/2018	4/5/2023			(4,897)		(2,819)
	100,000		100,000	Interest Rate Swap	1 mo. LIBOR	1.59		11/8/2019	4/1/2025			(6,256)		55
	75,000		75,000	Interest Rate Swap	1 mo. LIBOR	1.59		11/8/2019	4/1/2025			(4,693)		41
	200,000		—	Interest Rate Swap	1 mo. LIBOR	0.56		3/5/2020	4/19/2022			(1,313)		—
	75,000		—	Interest Rate Swap	1 mo. LIBOR	0.61		3/5/2020	10/5/2023			(1,066)		—
	175,000		—	Interest Rate Swap	1 mo. LIBOR	0.64		3/5/2020	10/1/2024			(3,285)		—
$	700,000	$	325,000								$	(21,510)	$	(2,656)

(1)

Derivative assets are recorded at fair value in our condensed consolidated balance sheets in other assets and derivative liabilities are recorded at fair value in our condensed consolidated balance sheets in unearned revenue, prepaid rent and other liabilities. We do not net our derivative position by counterparty for purposes of balance sheet presentation and disclosure.

(2)	On May 5, 2020, the $75 million five-year interest rate swap agreement, which reduced our variability in cash flows relating to interest payments based on one-month LIBOR variable debt, expired.

Risk Management Objective of Using Derivatives

We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of our debt funding and the use of derivative financial instruments. Specifically, we enter into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known or uncertain cash amounts, the value of which are determined by interest rates. Our derivative financial instruments are used to manage differences in the amount, timing, and duration of our known or expected cash receipts and our known or expected cash payments principally related to our investments and borrowings.

Cash Flow Hedges of Interest Rate Risk

Our objectives in using interest rate derivatives are to reduce variability in interest expense and to manage our exposure to adverse interest rate movements. To accomplish this objective, we primarily use interest rate swaps as part of our interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable

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amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

The changes in the fair value of derivatives designated and that qualify as effective cash flow hedges is recorded in accumulated other comprehensive income or loss on the condensed consolidated balance sheets and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings.

Amounts reported in accumulated other comprehensive gain or loss related to derivatives will be reclassified to interest expense as interest payments are made on our variable-rate debt. During the subsequent twelve months, beginning October 1, 2020, we estimate that $7.4 million will be reclassified as an increase to interest expense.

9. Stockholders’ Equity

We announced the following dividends per share on our common stock during the nine months ended September 30, 2020:


Declaration Date	Record Date	Payment Date	Common Stock
March 5, 2020	March 31, 2020	April 15, 2020	$	1.22
May 20, 2020	June 30, 2020	July 15, 2020		1.22
September 2, 2020	September 30, 2020	October 15, 2020		1.22
Total			$	3.66

We announced the following dividends per share on our common stock during the nine months ended September 30, 2019:


Declaration Date	Record Date	Payment Date	Common Stock
March 7, 2019	March 29, 2019	April 15, 2019	$	1.10
May 16, 2019	June 28, 2019	July 15, 2019		1.22
September 4, 2019	September 30, 2019	October 15, 2019		1.22
Total			$	3.54

10. Noncontrolling Interests — Operating Partnership

Noncontrolling interests represent the limited partnership interests in our Operating Partnership held by individuals and entities other than CoreSite Realty Corporation. The current holders of common Operating Partnership units are eligible to have the common Operating Partnership units redeemed for cash or common stock on a one-for-one basis, at our option.

The following table shows the common ownership interests in our Operating Partnership as of September 30, 2020, and December 31, 2019:


	September 30, 2020			December 31, 2019
	Number of Units	Percentage of Total		Number of Units	Percentage of Total
CoreSite Realty Corporation	42,266,793	87.7	%	37,244,987	77.6	%
Noncontrolling interests	5,919,346	12.3		10,771,658	22.4
Total	48,186,139	100.0	%	48,016,645	100.0	%

For each share of common stock issued by us, our Operating Partnership issues to us an equivalent common Operating Partnership unit. During the nine months ended September 30, 2020, we issued 171,634 shares of common stock related to employee compensation arrangements and therefore an equivalent number of common Operating Partnership units were issued to us by our Operating Partnership.

Holders of common Operating Partnership units received aggregate distributions of $3.66 per unit during the nine months ended September 30, 2020, payable in correlation with declared dividends on shares of our common stock.

During the nine months ended September 30, 2020, 4,850,172 common Operating Partnership units held by affiliates of the Carlyle Group were redeemed on a one-for-one basis for shares of our common stock in connection with the sale of

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our common stock. The redemptions were recorded as a $23.3 million reduction to noncontrolling interests in our Operating Partnership and an increase to total stockholder’s equity in the condensed consolidated balance sheets.

The redemption value of the noncontrolling interests at September 30, 2020, was $703.7 million based on the closing price of the Company’s common stock of $118.88 per share on the last trading day prior to that date.

11. Equity Incentive Plan

Our Board of Directors adopted and, with the approval of our stockholders, amended the 2010 Equity Incentive Plan (as amended, the “2010 Plan”) in 2013. The 2010 Plan is administered by the Compensation Committee of our Board of Directors. Awards issuable under the 2010 Plan include common stock, stock options, restricted stock, restricted stock units, stock appreciation rights, dividend equivalents, Operating Partnership units and other incentive awards. We have reserved a total of 6,000,000 shares of our common stock for issuance pursuant to the 2010 Plan, which may be adjusted for changes in our capitalization and certain corporate transactions. To the extent that an award expires, terminates or lapses, or an award is settled in cash without the delivery of shares of common stock to the participant, then any unvested shares subject to the award will be available for future grant or sale under the 2010 Plan. Shares of restricted stock that are forfeited or repurchased by us pursuant to the 2010 Plan may again be awarded under the 2010 Plan. The payment of dividend equivalents in cash in conjunction with any outstanding awards will not be counted against the shares available for issuance under the 2010 Plan.

As of September 30, 2020, 2,473,799 shares of our common stock were available for issuance pursuant to the 2010 Plan.

Stock Options

Stock option awards are granted with an exercise price equal to the closing market price of the Company’s common stock on the date of grant. The fair value of each option granted under the 2010 Plan is estimated on the date of grant using the Black-Scholes option-pricing model. The fair values are amortized on a straight-line basis over the vesting periods. Stock options have not been granted since the year ended December 31, 2013.

As of September 30, 2020, all stock option awards are fully vested. The following table sets forth stock option activity under the 2010 Plan for the nine months ended September 30, 2020:


	Number of
	Shares	Weighted-
	Subject to	Average
	Option	Exercise Price
Options outstanding, December 31, 2019	31,746	$	19.57
Granted	—		—
Exercised	(19,814)		16.45
Forfeited	—		—
Expired	—		—
Options outstanding, September 30, 2020	11,932	$	24.76

Restricted Stock Awards and Units

Restricted stock awards (“RSAs”) and restricted stock units (“RSUs”) are granted with a fair value equal to the closing market price of the Company’s common stock on the date of grant. The principal difference between RSAs and RSUs is that RSUs are not shares of our common stock and do not have any of the rights or privileges thereof, including voting rights. On the applicable vesting date, the holder of an RSU becomes entitled to a share of common stock. The RSAs and RSUs are amortized on a straight-line basis to expense over the vesting period.

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The following table sets forth the number of unvested RSAs and RSUs and the weighted-average fair value of these awards at the date of grant:


	Restricted	Weighted-
	Stock	Average Fair
	Awards and	Value at Grant
	Units	Date
Unvested balance, December 31, 2019	292,373	$	96.44
Granted	157,645		110.27
Forfeited	(15,405)		102.03
Vested	(124,136)		91.27
Unvested balance, September 30, 2020	310,477	$	105.25

As of September 30, 2020, total unearned compensation on restricted stock awards and RSUs was approximately $25.4 million, and the weighted-average vesting period was 2.5 years.

Performance Stock Awards

We grant long-term incentives to members of management in the form of performance-based restricted stock awards (“PSAs”) under the 2010 Plan. The number of PSAs earned is based on our achievement of relative total shareholder return (“TSR”) measured versus the MSCI US REIT Index over a three-year performance period and ranges between 25% and 175% of the target number of shares for PSAs granted in 2018, 2019, and 2020. The PSAs are granted at the maximum percentage of target and are retired annually to the extent we do not meet the maximum relative TSR performance threshold versus the MSCI US REIT Index. The PSAs are earned upon TSR achievement measured both annually and over the full three-year performance period. The PSAs have a service condition and will be released at the end of the three-year performance period, to the extent earned, provided that the holder continues to be employed or otherwise in service of the Company at the end of the three-year performance period. The PSAs are amortized on a straight-line basis to expense over the vesting period. Holders of the PSAs are entitled to dividends on the PSAs, which are accrued and paid in cash at the end of the three-year performance period.

The following table sets forth the number of unvested PSAs and the weighted-average fair value of these awards at the date of grant:


				Weighted-
				Average Fair
	Performance-Based Restricted Stock Awards			Value at Grant
	Minimum	Maximum	Target	Date
Unvested balance, December 31, 2019	34,624	171,351	102,989	$	107.84
Granted	10,210	71,488	40,852		125.02
Performance adjustment⁽¹⁾	38,047	(7,904)	15,073		—
Forfeited	(1,049)	(4,878)	(2,964)		107.63
Vested	(32,524)	(32,524)	(32,524)		105.55
Unvested balance, September 30, 2020	49,308	197,533	123,426	$	113.96

(1)	Includes the annual adjustment for the number of PSAs earned based on our achievement of relative TSR measured versus the MSCI US REIT Index for the applicable performance periods.

As of September 30, 2020, total unearned compensation on PSAs was approximately $7.2 million, and the weighted-average vesting period was 2.0 years. The fair value of each PSA award is estimated on the date of grant using a Monte Carlo simulation. The simulation requires assumptions for expected volatility, risk-free rate of return, and dividend yield.

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The following table summarizes the assumptions used to value the PSAs granted during the nine months ended September 30, 2020, and 2019:


	Nine Months Ended September 30,
	2020		2019
Expected term (in years)	2.82		2.82
Expected volatility	24.00	%	24.09	%
Expected annual dividend⁽¹⁾	—		—
Risk-free rate	0.56	%	2.48	%

(1)	The fair value of the PSAs assumes reinvestment of dividends.

12. Earnings Per Share

Basic net income per share is calculated by dividing the net income attributable to common shares by the weighted-average number of common shares outstanding during the period. Diluted net income per share adjusts basic net income per share for the effects of potentially dilutive common shares, if the effect is not antidilutive. Potentially dilutive common stock consists of shares issuable under the 2010 Plan.

The following is a summary of basic and diluted net income per share (in thousands, except share and per share amounts):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Net income attributable to common shares	$	21,132	$	17,450	$	59,651	$	56,646
Weighted-average common shares outstanding - basic		42,234,534		36,950,950		39,823,394		36,589,593
Effect of potentially dilutive common shares:
Stock options		13,715		38,172		20,270		38,663
Unvested awards		156,147		143,033		152,329		134,985
Weighted-average common shares outstanding - diluted		42,404,396		37,132,155		39,995,993		36,763,241
Net income per share attributable to common shares
Basic	$	0.50	$	0.47	$	1.50	$	1.55
Diluted	$	0.50	$	0.47	$	1.49	$	1.54

In the calculations above, we have excluded weighted-average potentially dilutive securities of 267 and 100 for the three months ended September 30, 2020, and 2019, respectively, 1,857 and 1,810 for the nine months ended September 30, 2020, and 2019, respectively, as their effect would have been antidilutive.

13. Estimated Fair Value of Financial Instruments

Authoritative guidance issued by FASB establishes a hierarchy of valuation techniques based on the observability of inputs utilized in measuring assets and liabilities at fair values. This hierarchy establishes market-based or observable inputs as the preferred source of values, followed by valuation models using management assumptions in the absence of market inputs. The three levels of the hierarchy under the authoritative guidance are as follows:

Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity can access at the assessment date.

Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.

Level 3 — Unobservable inputs for the asset or liability.

Our financial instruments consist of cash and cash equivalents, accounts and other receivables, interest rate swaps, the revolving credit facility, the senior unsecured term loans, senior unsecured notes, interest payable and accounts payable. The carrying values of cash and cash equivalents, accounts and other receivables, interest payable and accounts payable

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approximate fair values due to the short-term nature of these financial instruments. The interest rate swaps are recorded at fair value.

The valuation of our derivatives is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative, which reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves. We have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy; however, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by our Operating Partnership and its counterparties. As of September 30, 2020, we have assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative positions and have determined that the credit valuation adjustment is not significant to the overall valuation of our derivative portfolio. As a result, we classify our derivative valuation in Level 2 of the fair value hierarchy.

The total principal balance of our revolving credit facility, senior unsecured term loans, and senior unsecured notes was $1.7 billion and $1.5 billion as of September 30, 2020, and December 31, 2019, which approximates the fair value based on Level 3 inputs from the fair value hierarchy. Under the discounted cash flow method, the fair values of the revolving credit facility, the senior unsecured term loans, and the senior unsecured notes are based on our assumptions of market interest rates and terms available incorporating our credit risk for similar loan maturities.

Our lease liabilities are determined based on the estimated present value of our minimum lease payments under our lease agreements at lease commencement. The discount rate used to determine the lease liabilities is based on our estimated incremental borrowing rate at lease commencement, based on Level 3 inputs from the fair value hierarchy.

14. Commitments and Contingencies

Our properties require periodic investments of capital for general capital improvements and for tenant-related capital expenditures. We enter into various construction and equipment contracts with third parties for the development of our properties. At September 30, 2020, we had open commitments related to construction contracts of approximately $56.5 million.

Additionally, we have commitments related to telecommunications capacity used to connect data centers located within the same market or geographical area, power usage, and company-wide improvements that are ancillary to revenue generation. At September 30, 2020, we had open commitments related to these contracts of approximately $169.2 million, of which $11.3 million is scheduled to be met during the remainder of the year ending December 31, 2020.

In the ordinary course of business, we are subject to claims and administrative proceedings. We are not presently party to any proceeding, which we believe to be material or which we would expect to have, individually or in the aggregate, a material adverse effect on our business, financial condition, cash flows or results of operations. The outcome of litigation and administrative proceedings is inherently uncertain. Therefore, if one or more legal or administrative matters are resolved against us in a reporting period for amounts in excess of management’s expectations, our financial condition, cash flows or results of operations for that reporting period could be materially adversely affected.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-Looking Statements

This Quarterly Report on Form 10-Q (this “Quarterly Report”), together with other statements and information publicly disseminated by our company, contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 (“PSLRA”), namely Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the PSLRA and include this statement for purposes of complying with these safe harbor provisions.

In particular, statements pertaining to our capital resources, portfolio performance, business strategies and results of operations contain forward-looking statements. You can identify forward-looking statements by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” “seeks,” “intends,” “plans,” “pro forma” or “anticipates” or the negative of these words and phrases or similar words or phrases that are predictions of or indicate future events or trends and that do not relate solely to historical matters. You can also identify forward-looking statements by discussions of strategy, plans or intentions. Such statements are subject to risks, uncertainties and assumptions and are not guarantees of future performance, which may be affected by known and unknown risks, trends, uncertainties and factors that are beyond our control. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated or projected. The following factors, among others, could cause actual results and future events to differ materially from those set forth or contemplated in the forward-looking statements: (i) the geographic concentration of our data centers in certain markets and any adverse developments in local economic conditions or the amount of supply of or demand for data center space in these markets; (ii) fluctuations in interest rates and increased operating costs; (iii) difficulties in identifying properties to acquire and completing acquisitions; (iv) the significant competition in our industry, including indirect competition from cloud service providers, and an inability to lease vacant space, renew existing leases or release space as leases expire; (v) lack of sufficient customer demand to realize expected returns on our investments to expand our property portfolio; (vi) decreased revenue from costs and disruptions associated with any failure of our physical infrastructure or services; (vii) our ability to develop and lease available space to existing or new customers; (viii) our failure to obtain necessary outside financing; (ix) our ability to service existing debt; (x) our failure to qualify or maintain our status as a real estate investment trust (“REIT”); (xi) financial market fluctuations; (xii) changes in real estate and zoning laws and increases in real estate taxes; (xiii) the effects on our business operations, demand for our services and general economic conditions resulting from the spread of the novel coronavirus (“COVID-19”) in our markets, as well as orders, directives and legislative action by local, state and federal governments in response to the spread of COVID-19; (xiv) delays or disruptions in third-party network connectivity; (xv) service failures or price increases by third party power suppliers; (xvi) inability to renew net leases on the data center properties we lease; and (xvii) other factors affecting the real estate or technology industries generally.

While forward-looking statements reflect our good faith beliefs, they are not guarantees of future performance. We disclaim any obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, of new information, data or methods, future events or other changes, except as required by applicable law. The risks included here are not exhaustive, and additional factors could adversely affect our business and financial performance, including factors and risks included in other sections of this Quarterly Report, including in Item 1A. “Risk Factors” of this Quarterly Report. Additional information concerning these and other risks and uncertainties is contained in our other periodic filings with the United States Securities and Exchange Commission (“SEC”) pursuant to the Exchange Act. We discussed a number of material risks in Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2019. Those risks continue to be relevant to our performance and financial condition. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results.

Overview

Unless the context requires otherwise, references in this Quarterly Report to “we,” “our,” “us” and “our company” refer to CoreSite Realty Corporation, a Maryland corporation, together with our consolidated subsidiaries, including CoreSite, L.P., a Delaware limited partnership of which we are the sole general partner and to which we refer in this Quarterly Report as our “Operating Partnership.”

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We are engaged in the business of ownership, acquisition, construction and operation of strategically located data centers in some of the largest and fastest growing data center markets in the United States, including the San Francisco Bay area, Los Angeles, the Northern Virginia area (including Washington D.C.), the New York area, Boston, Chicago, Denver and Miami.

We deliver secure, reliable, high-performance data center, cloud access and interconnection solutions to a growing customer ecosystem across eight key North American communication markets. More than 1,350 of the world’s leading enterprises, network operators, cloud providers, and supporting service providers choose us to connect, protect and optimize their performance-sensitive data, applications and computing workloads.

Our focus is to bring together a network and cloud community to support the needs of enterprises, and create a diverse customer ecosystem. Our growth strategy includes (i) increasing cash flow from in-place data center space, (ii) capitalizing on embedded expansion opportunities within existing data centers, (iii) selectively pursuing acquisition and development opportunities in existing and new markets, (iv) expanding existing customer relationships, and (v) attracting new customers.

Our Portfolio

As of September 30, 2020, our property portfolio included 24 operating data center facilities, office and light-industrial space and multiple potential development projects that collectively comprise over 4.6 million net rentable square feet (“NRSF”), of which over 2.7 million NRSF is existing data center space. The approximately 1.5 million NRSF of development projects includes space available for development and construction of new data center facilities. We expect that this development potential plus any incremental investment into existing or new markets will enable us to accommodate existing and future customer demand and position us to continue to increase our operating cash flows.

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The following table provides an overview of our property portfolio as of September 30, 2020:


	Data Center Operating Properties
			Stabilized			Pre-Stabilized ⁽¹⁾			Total			Total	Total
	Annualized		Total	Percent		Total	Percent			Percent		Development	Portfolio
Market / Facilities	Rent ($000)⁽²⁾		NRSF⁽³⁾	Occupied⁽⁴⁾		NRSF⁽³⁾	Occupied⁽⁴⁾		NRSF⁽³⁾	Occupied⁽⁴⁾		NRSF ⁽⁵⁾	NRSF
San Francisco Bay
SV1	$	6,301	88,251	77.7	%	—	—	%	88,251	77.7	%	—	88,251
SV2		3,703	76,676	50.1		—	—		76,676	50.1		—	76,676
Santa Clara campus(SV3-SV9)		98,411	723,181	97.5		52,201	11.3		775,382	91.7		240,000	1,015,382
San Francisco Bay Total		108,415	888,108	91.4		52,201	11.3		940,309	87.0		240,000	1,180,309
Los Angeles
One Wilshire campus
LA1*		31,355	145,776	91.5		17,238	34.2		163,014	85.4		10,352	173,366
LA2		55,158	424,890	86.5		—	—		424,890	86.5		—	424,890
LA3		—	—	—		—	—		—	—		160,152	160,152
LA4*		906	21,850	64.0		—	—		21,850	64.0		—	21,850
Los Angeles Total		87,419	592,516	86.9		17,238	34.2		609,754	85.4		170,504	780,258
Northern Virginia
VA1		23,663	201,719	82.5		—	—		201,719	82.5		—	201,719
VA2		22,936	188,446	99.7		—	—		188,446	99.7		—	188,446
VA3		7,017	79,171	95.2		51,233	28.6		130,404	69.0		395,997	526,401
DC1*		3,073	22,137	74.8		—	—		22,137	74.8		—	22,137
DC2*		2,315	9,810	100.0		14,753	8.2		24,563	44.9		—	24,563
Reston Campus Expansion⁽⁶⁾		—	—	—		—	—		—	—		413,745	413,745
Northern Virginia Total		59,004	501,283	91.0		65,986	24.0		567,269	83.2		809,742	1,377,011
New York
NY1*		4,040	48,404	73.8		—	—		48,404	73.8		—	48,404
NY2		17,545	119,863	86.8		34,589	19.5		154,452	71.8		81,799	236,251
New York Total		21,585	168,267	83.1		34,589	19.5		202,856	72.2		81,799	284,655
Boston
BO1		16,063	122,730	76.4		19,961	—		142,691	65.7		110,985	253,676
Boston Total		16,063	122,730	76.4		19,961	—		142,691	65.7		110,985	253,676
Chicago
CH1		15,923	178,407	82.1		—	—		178,407	82.1		—	178,407
CH2		57	—	—		54,798	0.7		54,798	0.7		112,368	167,166
Chicago Total		15,980	178,407	82.1		54,798	0.7		233,205	63.0		112,368	345,573
Denver
DE1*		4,867	29,784	66.0		—	—		29,784	66.0		—	29,784
DE2*		478	5,140	71.4		—	—		5,140	71.4		—	5,140
Denver Total		5,345	34,924	66.8		—	—		34,924	66.8		—	34,924
Miami
MI1		1,739	30,176	68.9		—	—		30,176	68.9		13,154	43,330
Miami Total		1,739	30,176	68.9		—	—		30,176	68.9		13,154	43,330

Total Data Center Facilities	$	315,550	2,516,411	87.7	%	244,773	14.2	%	2,761,184	81.2	%	1,538,552	4,299,736

Office and Light-Industrial⁽⁷⁾		8,818	368,946	77.3		—	—		368,946	77.3		—	368,946
Reston Office and Light-Industrial⁽⁶⁾		815	54,470	100.0		—	—		54,470	100.0		(54,470)	—
													—
Total Portfolio	$	325,183	2,939,827	86.6	%	244,773	14.2	%	3,184,600	81.1	%	1,484,082	4,668,682

*	Indicates properties in which we hold a leasehold interest.

(1)	Pre-stabilized NRSF represents projects or facilities that recently have been developed and are in the initial lease-up phase. Pre-stabilized projects or facilities become stabilized operating properties at the earlier of achievement of 85% occupancy or 24 months after development completion.

(2)

Represents the monthly contractual rent under existing commenced customer leases as of September 30, 2020, multiplied by 12. This amount reflects total annualized base rent before any one-time or non-recurring rent abatements and excludes power revenue, interconnection revenue and operating expense reimbursement. On a gross basis, our total portfolio annualized rent was approximately $330.7 million as of September 30, 2020, which includes $5.5 million in operating expense reimbursements under modified gross and triple-net leases. Our management uses annualized base rent as a supplemental performance measure because, when compared quarter over quarter or year over year, it captures profitability of our assets. We offer this measure because we recognize that annualized base rent will be used by investors to compare our profitability with that of other REITs.

(3)

Represents NRSF at each operating facility that is currently occupied or readily available for lease as data center space and pre-stabilized data center space. Both occupied and available data center NRSF includes a factor based on management’s estimate to account for a customer’s proportionate share of the required data center support space (such as the mechanical, telecommunications and utility rooms) and building common areas, which may be updated on a periodic basis to reflect the most current build-out of our properties. Operating data center NRSF may require investment of Deferred Expansion Capital (see definition on page 30).

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(4)

Includes customer leases that have commenced and are occupied as of September 30, 2020. The percent occupied is determined based on occupied square feet as a proportion of total operating NRSF as of September 30, 2020. The percent occupied for stabilized data center space would have been 88.6%, rather than 87.7%, if all leases signed in the current and prior periods had commenced. The percent occupied for our total portfolio, including stabilized data center space, pre-stabilized space and office and light-industrial space, would have been 83.0%, rather than 81.1%, if all leases signed in current and prior periods had commenced. Our management uses percent occupied as a supplemental performance measure because, when compared year-over-year, it captures trends in market demand for our assets. We offer this measure because we recognize that percent occupied will be used by investors as a basis to compare our operating performance with that of other REITs.

(5)

Represents incremental data center capacity currently vacant in existing facilities in our portfolio that requires significant capital investment in order to develop into data center facilities. Includes NRSF under construction for which substantial activities are ongoing to prepare the property for its intended use following development. The NRSF reflects management’s estimate of engineering drawings and required support space and is subject to change based on final demising of space.

(6)	Included within our Reston Campus Expansion held for development space is 54,470 NRSF that is currently operating as office and light-industrial space.

(7)	Represents space that is currently occupied or readily available for lease as space other than data center space, which typically is offered for office or light-industrial uses.

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“Same-store” statistics are based on space within each data center facility that was leased or available to be leased as of December 31, 2018, excluding space for which development was completed and became available to be leased after December 31, 2018. We track same-store space leased or available to be leased at the computer room level within each data center facility. Our management uses same-store statistics as a supplemental performance measure because they provide a performance comparison for the computer rooms that have been operating for two years or longer. Same-Store statistics will be used by investors as a basis to compare operating performance of our established computer rooms, excluding the impact of new computer rooms placed into service within the past two years, to that of other REITs. The following table shows the September 30, 2020, same-store operating statistics. For comparison purposes, the operating activity totals as of December 31, 2019, and 2018, for this space are provided at the bottom of this table.


	Same-Store Property Portfolio
			Data Center			Office and Light-Industrial			Total
	Annualized		Total	Percent		Total	Percent			Percent
Market / Facilities	Rent ($000)⁽¹⁾		NRSF	Occupied⁽²⁾		NRSF	Occupied⁽²⁾		NRSF	Occupied⁽²⁾
San Francisco Bay
SV1	$	12,176	88,251	77.7	%	231,919	81.1	%	320,170	80.2	%
SV2		3,703	76,676	50.1		—	—		76,676	50.1
Santa Clara campus (SV3 - SV7)		77,731	615,500	97.1		1,176	100.0		616,676	97.1
San Francisco Bay Total		93,610	780,427	90.3		233,095	81.2		1,013,522	88.2
Los Angeles
One Wilshire campus
LA1*		30,009	145,776	91.5		4,373	64.7		150,149	90.7
LA2		50,254	396,699	85.5		7,417	81.1		404,116	85.5
LA4		922	21,850	64.0		1,635	29.3		23,485	61.6
Los Angeles Total		81,185	564,325	86.2		13,425	69.4		577,750	85.9
Northern Virginia
VA1		24,979	201,719	82.5		61,050	87.9		262,769	83.8
VA2		22,993	188,446	99.7		4,308	32.5		192,754	98.2
VA3		4,944	79,170	95.2		6,854	35.3		86,024	90.4
DC1*		3,073	22,137	74.8		—	—		22,137	74.8
DC2*		2,315	24,563	44.9		—	—		24,563	44.9
Reston Campus Expansion		816	—	—		54,470	100.0		54,470	100.0
Northern Virginia Total		59,120	516,035	88.6		126,682	88.4		642,717	88.6
New York
NY1*		4,055	48,404	73.8		209	100.0		48,613	73.9
NY2		17,896	119,863	86.8		20,735	64.3		140,598	83.5
New York Total		21,951	168,267	83.1		20,944	64.6		189,211	81.0
Boston
BO1		16,303	122,730	76.4		19,495	55.2		142,225	73.5
Boston Total		16,303	122,730	76.4		19,495	55.2		142,225	73.5
Chicago
CH1		16,042	178,407	82.1		4,946	75.8		183,353	81.9
Chicago Total		16,042	178,407	82.1		4,946	75.8		183,353	81.9
Denver
DE1*		4,867	29,784	66.0		—	—		29,784	66.0
DE2*		478	5,140	71.4		—	—		5,140	71.4
Denver Total		5,345	34,924	66.8		—	—		34,924	66.8
Miami
MI1		1,758	30,176	68.9		1,934	56.2		32,110	68.1
Miami Total		1,758	30,176	68.9		1,934	56.2		32,110	68.1

Total Facilities at September 30, 2020⁽³⁾	$	295,314	2,395,291	86.5	%	420,521	80.8	%	2,815,812	85.7	%

Total Facilities at December 31, 2019	$	289,573		86.1	%		77.2	%		84.9	%

Total Facilities at December 31, 2018	$	291,434		87.8	%		78.8	%		86.5	%

*	Indicates properties in which we hold a leasehold interest.

(1)

Represents the monthly contractual rent under existing commenced customer leases as of each respective period, multiplied by 12. This amount reflects total annualized base rent before any one-time or non-recurring rent abatements and excludes power revenue, interconnection revenue and operating expense reimbursement.

(2)	Includes customer leases that have commenced and are occupied as of each respective period. The percent occupied is determined based on occupied square feet as a proportion of total operating NRSF.

(3)	The percent occupied for data center space, office and light-industrial space, and total space would have been 88.0%, 81.2% and 87.0%, respectively, if all leases signed in the current and prior periods had commenced.

Same-store annualized rent increased to $295.3 million at September 30, 2020, compared to $289.6 million at December 31, 2019. The increase of $5.7 million is primarily due to the commencement of new and expansion leases at DC2 and NY2, partially offset by the move-out of a customer at SV2.

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Development space is unoccupied space or land that requires significant capital investment in order to develop data center facilities that are ready for use. The following table summarizes the NRSF under construction and NRSF held for development throughout our portfolio, each as of September 30, 2020:


	Development Opportunities (in NRSF)
	Under	Held for
Facilities	Construction⁽¹⁾	Development⁽²⁾	Total
San Francisco Bay
SV9⁽³⁾	—	240,000	240,000
One Wilshire campus
LA1	—	10,352	10,352
LA3	51,376	108,776	160,152
Los Angeles Total	51,376	119,128	170,504
Northern Virginia
VA3	—	395,997	395,997
Reston Campus Expansion⁽³⁾	—	413,745	413,745
Northern Virginia Total	—	809,742	809,742
New York
NY2	—	81,799	81,799
Boston
BO1	—	110,985	110,985
Chicago
CH2	—	112,368	112,368
Miami
MI1	—	13,154	13,154
Total Facilities⁽⁴⁾	51,376	1,487,176	1,538,552

(1)	Represents NRSF for which substantial construction activities are ongoing to prepare the property for its intended use following development. The NRSF reflects management’s estimate of engineering drawings and required support space and is subject to change based on final demising of space.

(2)	Represents estimated incremental data center capacity currently vacant in existing facilities or on vacant land in our portfolio that requires significant capital investment in order to develop into data center facilities.

(3)	The NRSF for these facilities reflect management’s estimates based on our current construction plans and expectations regarding entitlements. These estimates are subject to change based on current economic conditions, final zoning approvals, and the supply and demand dynamics of the market.

(4)

In addition to our development opportunities disclosed within this table, we have land adjacent to our NY2 facility, in the form of an existing parking lot. By utilizing this land, we believe that we could develop 100,000 NRSF on our available acreage in Secaucus, New Jersey, upon receipt of necessary entitlements.

Capital Expenditures

The following table sets forth information regarding capital expenditures during the nine months ended September 30, 2020 (in thousands):


	Nine Months Ended
	September 30, 2020
Data center expansion	$	173,882
Non-recurring investments		2,885
Tenant improvements		4,413
Recurring capital expenditures		5,879
Total capital expenditures	$	187,059

During the nine months ended September 30, 2020, we incurred approximately $187.1 million of capital expenditures, of which approximately $173.9 million related to data center expansion activities, including new data center construction, the development of capacity within existing data centers and other revenue generating investments. As we construct data center capacity, we work to optimize both the amount of capital we deploy on power and cooling infrastructure and the timing of that capital deployment. As such, we generally construct our power and cooling infrastructure supporting our

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data center NRSF based on our estimate of customer utilization. This practice can result in our investment at a later time in “Deferred Expansion Capital”. We define Deferred Expansion Capital as our estimate of the incremental capital we may invest in the future to add power or cooling infrastructure to support existing or anticipated future customer utilization of NRSF within our operating data centers.

During the nine months ended September 30, 2020, we completed (i) one computer room at SV8, which was the final phase of that data center building; (ii) a data center core and shell building, and therein one computer room at CH2, which was the first phase of the project placed into service; and (iii) one computer room at NY2, and a power infrastructure project, which added incremental power capacity to the new computer room and other existing computer rooms. As of September 30, 2020, we have an ongoing development project at LA3, a new data center building, for which Phase 1 completed in October 2020. The following table sets forth capital expenditures spent for data center expansion NRSF placed into service during the nine months ended September 30, 2020, and under construction as of September 30, 2020:


			NRSF
	Data Center		Placed into	Under
Property	Expansion		Service	Construction⁽¹⁾
LA3	$	66,190	—	51,376
NY2		32,751	34,589	—
SV8		24,266	52,201	—
CH2		22,783	54,798	—
BO1		9,627	—	—
VA3		6,954	—	—
SV9		3,474	—	—
Other		7,837	—	—
Total	$	173,882	141,588	51,376

(1)

Represents NRSF under construction for which substantial activities are ongoing to prepare the property for its intended use following development.

During the nine months ended September 30, 2020, we incurred approximately $2.9 million in non-recurring investments, of which $0.5 million was a result of internal information technology software development and the remaining $2.4 million was a result of other non-recurring investments, such as remodel or upgrade projects.

During the nine months ended September 30, 2020, we incurred approximately $4.4 million in tenant improvements, which related to tenant-specific power installations at various properties.

During the nine months ended September 30, 2020, we incurred approximately $5.9 million of recurring capital expenditures within our portfolio, which includes required equipment upgrades at our various facilities that have a future economic benefit.

Factors that May Influence our Results of Operations

A complete discussion of factors that may influence our results of operations can be found in our Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on February 7, 2020, which is accessible on the SEC’s website at www.sec.gov.

The ongoing outbreak of COVID-19 has caused severe disruption in the U.S. and global economies, and we, our customers and vendors have been impacted to varying degrees, some of which is known and some unknown. The total impact of COVID-19 will largely depend on the severity and extent of the virus, success of actions taken to contain the threat of COVID-19, including restrictions on movement, the extent, duration and recovery time of related suppression of economic activity, the recovery time of disrupted supply chains, potentially material staffing shortages, construction and development delays, and reactions by consumers, companies, governmental entities, and capital markets. As of the date of this Quarterly Report, we have not seen a significantly adverse overall impact on the demand for data center space or on our ability to operate our business.

We have not experienced material delays on our data center expansion projects as a result of the COVID-19 pandemic. The COVID-19 outbreak continues to be fluid, and state and local governments may restrict construction, including

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restrictions that may impact our development projects. In addition, local governments may experience delays in permitting and inspecting construction projects, including delays that may impact our construction timelines.

Companies have responded to the COVID-19 pandemic in various ways, including encouraging employees to work remotely from home to restrict virus transmission. This shift may increase the demand for cloud computing and cloud-based information-technology architectures, which could result in increased demand for data center space in the short term and potentially in the longer-term. Conversely, this shift may create challenges or uncertainties for our customers or prospective customers that ultimately result in slower sales cycles.

Some of our customers and prospective customers are dependent on areas of the economy that have experienced a significant negative impact from the outbreak of COVID-19. As a result, these customers may become cash flow constrained and may not be able to comply with their rent obligations or may reduce their capital expenditure budgets for information technology infrastructure. In the first months of the pandemic, some customers requested, and more may request, rent concessions, abatements or other lease modifications. While the impacts to date are immaterial and the volume of requests has significantly slowed down since May, we continue to monitor and respond as needed to individual requests from customers. Should the number of rent concessions, abatements or instances of non-payment increase, our cash flows could be materially impacted. Furthermore, restrictions on our ability to evict tenants, whether due to government legislation or bankruptcy determinations, could adversely affect our cash flows. In addition, pay and the cost of safety accommodations for employees required to be on-site during a time of perceived higher health risk may modestly increase operating costs.

The rapid development and fluidity of the situation precludes any prediction as to the ultimate impact of COVID-19 on our business. The full extent of the impact and effects of COVID-19 on our future financial performance are uncertain at this time. See Item 1A. “Risk Factors—Pandemics or disease outbreaks, such as the novel coronavirus (“COVID-19”)”, may disrupt our business, as a result of, among other things, increased customer defaults, increased customer bankruptcies or insolvencies, delays in the development and lease-up of our properties, and severe disruption in the U.S. and global economies, which may further disrupt financial markets and could materially adversely impact our financial condition, operations, and liquidity.

Our ability to re-lease expiring space at rental rates equal to or in excess of current rental rates will impact our results of operations. We have 290 and 1,338 data center leases representing approximately 5.7% and 17.8% of the NRSF in our operating property portfolio which are scheduled to expire during the remainder of 2020 and the year ending December 31, 2021, respectively. These leases represent current annualized rent of $31.0 million, or 9.5% of total annualized rent, and $88.7 million, or 27.2% of total annualized rent, with annualized rental rates of $174 per NRSF and $160 per NRSF at expiration during the remainder of 2020 and the year ending December 31, 2021, respectively.

Results of operations may be affected by the amount of pre-stabilized properties in our portfolio. As we place new development projects into service, such as SV8, CH2, and VA3, the initial investment returns may be lower compared to stabilized properties due to operating expenses being less dependent on occupancy levels than revenues. We expect property operating expenses to increase as we place new data center NRSF into service and as projects become stabilized, we expect the investment returns to increase. During the nine months ended September 30, 2020, we placed approximately 142,000 NRSF of pre-stabilized data center space into service.

The amount of revenue generated by the properties in our portfolio depends on several factors, including our ability to lease available unoccupied and under construction space at attractive rental rates. As of September 30, 2020, we had approximately 571,000 NRSF of unoccupied or under construction data center space of which approximately 105,000 NRSF is leased with a future commencement date.

The loss of multiple significant customers could have a material adverse effect on our results of operations because our top ten customers in the aggregate account for 32.3% of our total operating NRSF and 42.6% of our total annualized rent as of September 30, 2020. One of our top ten customers has $8.3 million of annualized rent expiring in the fourth quarter of 2020, and $6.7 million of annualized rent expiring in the fourth quarter of 2021, which will not be renewed. We are actively working to re-lease this space; however, there may be a period of time between the expiration of the current customer lease and future backfill during which we will not earn revenue on this particular data center space.

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The following table summarizes our leasing activity during the nine months ended September 30, 2020:


			GAAP		Total	GAAP
		Number of	Annualized		Leased	Rental		GAAP Rent
	Three Months Ended	Leases⁽¹⁾	Rent ($000)⁽²⁾		NRSF⁽³⁾	Rates⁽⁴⁾		Growth⁽⁵⁾
New / expansion leases commenced	March 31, 2020	112	$	9,678	45,322	$	214
	June 30, 2020	121		7,925	45,271		175
	September 30, 2020	130		7,188	33,233		216
	Total	363	$	24,791	123,826	$	200

New / expansion leases signed	March 31, 2020	117	$	12,006	59,354	$	202
	June 30, 2020	112		3,471	22,191		156
	September 30, 2020	129		12,485	72,207		173
	Total	358	$	27,962	153,752	$	182

Renewal leases signed	March 31, 2020	280	$	17,334	120,943	$	143	7.2	%
	June 30, 2020	333		24,961	174,926		143	5.5
	September 30, 2020	309		20,662	135,959		152	5.1
	Total	922	$	62,957	431,828	$	146	5.8	%

(1)	Number of leases represents each agreement with a customer; a lease agreement could include multiple spaces and a customer could have multiple leases.

(2)	GAAP annualized rent represents the monthly average contractual rent as stated on customer contracts, multiplied by 12. This amount is inclusive of any one-time or non-recurring rent abatements and excludes power revenue, interconnection revenue and operating reimbursement.

(3)	Total leased NRSF is determined based on contractually leased square feet, including required data center support space (such as the mechanical, telecommunications and utility rooms) and building common areas.

(4)

GAAP rental rates represent GAAP annualized rent divided by leased NRSF. Our management uses GAAP annualized rent and GAAP rental rates as supplemental performance measures because, when compared quarter over quarter or year over year, they provide a performance measure that captures sales volume and pricing trends. We offer these measures because we recognize they will be used by investors to compare our sales volume and pricing trends to those of other REITs.

(5)	GAAP rent growth represents the increase in rental rates on renewed leases commencing during the period, as compared with the previous period’s rental rates for the same space.

Results of Operations

Three Months Ended September 30, 2020, Compared to the Three Months Ended September 30, 2019

The discussion below relates to our financial condition and results of operations for the three months ended September 30, 2020, and 2019. A summary of our operating results for the three months ended September 30, 2020, and 2019, is as follows (in thousands):


	Three Months Ended September 30,
	2020		2019		$ Change		% Change
Operating revenue	$	153,981	$	144,891	$	9,090	6.3	%
Operating expense		118,455		111,248		7,207	6.5
Operating income		35,526		33,643		1,883	5.6
Interest expense		11,384		10,986		398	3.6
Net income		24,132		22,644		1,488	6.6

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Operating Revenue

Operating revenue during the three months ended September 30, 2020, and 2019, was as follows (in thousands):


	Three Months Ended September 30,
	2020		2019		$ Change		% Change
Data center revenue:
Rental, power, and related revenue	$	130,300	$	122,598	$	7,702	6.3	%
Interconnection revenue		21,144		19,082		2,062	10.8
Total data center revenue		151,444		141,680		9,764	6.9
Office, light-industrial and other revenue		2,537		3,211		(674)	(21.0)
Total operating revenues	$	153,981	$	144,891	$	9,090	6.3	%

The increase in operating revenues was primarily due to a $7.7 million, or 6.3%, increase in data center rental, power, and related revenue during the three months ended September 30, 2020, compared to the 2019 period. Data center rental, power, and related revenue increased due to the organic growth of our customer revenue base through favorable renewals, new customer leases and lease expansions into new and existing space, and increased power consumption by our customers within their deployments. Most notably, data center rental, power, and related revenue at SV8, VA3 and NY2, where we have placed into service large contiguous data center NRSF within the last two years, has increased $5.0 million, $1.7 million, and $1.2 million, respectively, compared to the three months ended September 30, 2019. These increases were primarily due to the commencement of large scale customer leases throughout the past twelve months, which generate variable revenue growth as customers deploy their IT equipment and increase their power consumption. This activity was offset by a customer move-out of 28,456 NRSF at SV2 and a customer move-out of 17,231 NRSF at BO1, as well as, other customer move-outs across various properties.

In addition, interconnection revenue increased $2.1 million, or 10.8%, during the three months ended September 30, 2020, compared to the 2019 period. The increase is primarily a result of a net increase in the volume of cross connects from new and existing customers during the twelve months ended September 30, 2020, and revenue increases resulting from customers migrating to our higher priced fiber and logical cross connect products.

Operating Expenses

Operating expenses during the three months ended September 30, 2020, and 2019, were as follows (in thousands):


	Three Months Ended September 30,
	2020		2019		$ Change		% Change
Property operating and maintenance	$	44,986	$	41,251	$	3,735	9.1	%
Real estate taxes and insurance		5,989		4,973		1,016	20.4
Depreciation and amortization		41,759		40,546		1,213	3.0
Sales and marketing		5,901		5,476		425	7.8
General and administrative		10,854		10,671		183	1.7
Rent		8,966		8,331		635	7.6
Total operating expenses	$	118,455	$	111,248	$	7,207	6.5	%

Property operating and maintenance expense increased $3.7 million, or 9.1%, during the three months ended September 30, 2020, compared to the 2019 period, primarily as a result of an increase in salary and benefits expenses related to new operations at CH2, SV8 and VA3, an increase in power expense due to increased customer power utilization related to the commencement of new and expansion leases, net of customer move-outs, and increased costs related to building out customer requirements for their deployments.

Real estate taxes and insurance expense increased $1.0 million, or 20.4%, during the three months ended September 30, 2020 as compared with the 2019 period primarily due to the completion of SV8 and CH2 resulting in an increased real estate tax assessment, ceased capitalization of expenses, and an increase in insurance expense.

Depreciation and amortization expense increased $1.2 million, or 3.0%, during the three months ended September 30, 2020, compared to the 2019 period, primarily as a result of an increase in depreciation expense from approximately

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215,000 NRSF of new data center expansion projects placed into service during the twelve months ended September 30, 2020 with a cost basis of approximately $223.0 million.

General and administrative expense increased $0.2 million, or 1.7%, compared to the three months ended September 30, 2019, primarily related to an increased headcount, resulting in higher salaries and non-cash compensation, partially offset by savings from reduced travel and events due to COVID-19.

Rent expense increased by $0.6 million, or 7.6%, during the three months ended September 30, 2020, compared to the 2019 period. The increase was primarily due to an increase in common area and maintenance expenses at LA1 during the three months ended September 30, 2020, compared to the three months ended September 30, 2019.

Interest Expense

Interest expense for the three months ended September 30, 2020, and 2019, was as follows (in thousands):


	Three Months Ended September 30,
	2020			2019			$ Change		% Change
Interest expense and fees	$	13,555		$	13,819		$	(264)	(1.9)	%
Amortization of deferred financing costs and hedge amortization		1,028			901			127	14.1
Capitalized interest		(3,199)			(3,734)			535	(14.3)
Total interest expense	$	11,384		$	10,986		$	398	3.6	%
Percent capitalized		21.9	%		25.4	%

Total interest expense increased $0.4 million, or 3.6%, during the three months ended September 30, 2020, compared to the 2019 period, primarily as a result of decreased capitalized interest due to placing SV8 Phase 3 and CH2 Phase 1 into service during the second quarter of 2020. The weighted average principal debt outstanding was $1.7 billion and $1.4 billion during the three months ended September 30, 2020, and 2019, respectively. This increase was partially offset by a decrease in our daily weighted average interest rate to 3.19% during the three months ended September 30, 2020, from 3.88% during the three months ended September 30, 2019.

Nine Months Ended September 30, 2020, Compared to the Nine Months Ended September 30, 2019

The discussion below relates to our financial condition and results of operations for the nine months ended September 30, 2020, and 2019. A summary of our operating results for the nine months ended September 30, 2020, and 2019, is as follows (in thousands):


	Nine Months Ended September 30,
	2020		2019		$ Change		% Change
Operating revenue	$	451,886	$	426,692	$	25,194	5.9	%
Operating expense		346,479		321,560		24,919	7.7
Operating income		105,407		105,132		275	0.3
Interest expense		33,153		30,795		2,358	7.7
Net income		72,208		74,292		(2,084)	(2.8)

Operating Revenue

Operating revenue during the nine months ended September 30, 2020, and 2019, was as follows (in thousands):


	Nine Months Ended September 30,
	2020		2019		$ Change		% Change
Data center revenue:
Rental, power, and related revenue	$	381,913	$	361,534	$	20,379	5.6	%
Interconnection revenue		62,126		56,274		5,852	10.4
Total data center revenue		444,039		417,808		26,231	6.3
Office, light-industrial and other revenue		7,847		8,884		(1,037)	(11.7)
Total operating revenues	$	451,886	$	426,692	$	25,194	5.9	%

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A majority of the increase in operating revenues was due to a $20.4 million, or 5.6%, increase to data center rental, power, and related revenue during the nine months ended September 30, 2020, compared to the 2019 period. Data center rental, power, and related revenue increased due to the organic growth of our customer revenue base through favorable renewals, new customer leases and lease expansions into new and existing space, and increased power consumption by our customers within their deployments. Most notable, data center rental, power and related revenue at our SV8, VA3, NY2, and DC2 properties, where we have placed into service large contiguous data center NRSF within the last two years, has increased $16.0 million, $4.4 million, $4.2 million, and $2.1 million, respectively, compared to the nine months ended September 30, 2019. These increases are primarily due to the commencement of large scale customer leases during the past twelve months, which generate variable revenue growth as customers deploy their IT equipment and increase their power consumption. This activity was offset by customer move-outs during 2019 of 28,456 NRSF at SV2 and 17,231 NRSF at BO1, as well as, other customer move-outs across various properties.

In addition, interconnection revenue increased $5.9 million, or 10.4%, during the nine months ended September 30, 2020, compared to the 2019 period. The increase is primarily due to the net increase in volume of cross connects from new and existing customers during the twelve months ended September 30, 2020, and revenue increases resulting from customers migrating to our higher priced fiber and logical cross connect products.

Operating Expenses

Operating expenses during the nine months ended September 30, 2020, and 2019, were as follows (in thousands):


	Nine Months Ended September 30,
	2020		2019		$ Change		% Change
Property operating and maintenance	$	126,206	$	117,428	$	8,778	7.5	%
Real estate taxes and insurance		17,778		17,157		621	3.6
Depreciation and amortization		124,529		113,188		11,341	10.0
Sales and marketing		17,882		16,912		970	5.7
General and administrative		33,724		33,123		601	1.8
Rent		26,360		23,752		2,608	11.0
Total operating expenses	$	346,479	$	321,560	$	24,919	7.7	%

Property operating and maintenance expense increased $8.8 million, or 7.5%, primarily as a result of an increase in salary and benefits expenses related to new operations at SV8, VA3 and CH2, an increase in power expense due to increased customer power utilization related to the commencement of new and expansion leases, net of customer move-outs, and increased costs related to building out customer requirements for their deployments.

Real estate taxes and insurance expense increased $0.6 million, or 3.6%, during the nine months ended September 30, 2020 primarily due to the completion of SV8 and CH2 resulting in an increased real estate tax assessment, ceased capitalization of expenses, and an increase in insurance expense.

Depreciation and amortization expense increased $11.3 million, or 10.0%, during the nine months ended September 30, 2020, compared to the 2019 period, primarily as a result of an increase in depreciation expense from approximately 215,000 NRSF of new data center expansion projects placed into service during the twelve months ended September 30, 2020 with a cost basis of approximately $223.0 million.

Sales and marketing expense increased $1.0 million, or 5.7%, during the nine months ended September 30, 2020, compared to the 2019 period, primarily due to an increased headcount, resulting in higher salaries and non-cash compensation.

General and administrative expense increased $0.6 million, or 1.8%, during the nine months ended September 30, 2020, compared to the 2019 period, primarily as a result of an increased bad debt expense of $0.9 million related to customers in bankruptcy proceedings and increased customer financial distress related to the COVID-19 outbreak, higher salaries and non-cash compensation. The increase is partially offset by decreased legal expenses compared to the nine months ended September 30, 2019.

Rent expense increased by $2.6 million, or 11.0%, during the nine months ended September 30, 2020, compared to the 2019 period. The increase was primarily due to additional rent expense incurred from our leasehold interest properties

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during the nine months ended September 30, 2020, related to the completion and placing into service of an additional computer room at LA1 during the nine months ended September 30, 2019, and an increase in common area and maintenance expenses at LA1 during the nine months ended September 30, 2020, compared to the nine months ended September 30, 2019.

Interest

Interest expense for the nine months ended September 30, 2020, and 2019, was as follows (in thousands):


	Nine Months Ended September 30,
	2020			2019			$ Change		% Change
Interest expense and fees	$	39,985		$	38,391		$	1,594	4.2	%
Amortization of deferred financing costs and hedge amortization		3,100			2,368			732	30.9
Capitalized interest		(9,932)			(9,964)			32	(0.3)
Total interest expense	$	33,153		$	30,795		$	2,358	7.7	%
Percent capitalized		23.1	%		24.4	%

Total interest expense increased $2.4 million, or 7.7%, during the nine months ended September 30, 2020, compared to the 2019 period, primarily as a result of the increase in overall debt outstanding and debt issuance costs. The weighted average principal debt outstanding was $1.7 billion and $1.3 billion during the nine months ended September 30, 2020, and 2019, respectively. This increase was largely offset by a decrease in our daily weighted average interest rate to 3.23% during the nine months ended September 30, 2020, from 3.90% during the nine months ended September 30, 2019.

Liquidity and Capital Resources

Discussion of Cash Flows

Nine Months Ended September 30, September 30, 2020, Compared to the Nine Months Ended September 30, 2019

Operating Activities

Net cash provided by operating activities was $194.8 million for the nine months ended September 30, 2020, compared to $187.7 million for the nine months ended September 30, 2019. The increase of $7.1 million, or 3.8%, was driven by organic growth of our operating cash flows from completing and placing approximately 215,000 NRSF of new data center space into service and successfully leasing the new space during the twelve months ended September 30, 2020. The increase was partially offset by higher initial direct costs of $3.8 million related to higher leasing commissions during the nine months ended September 30, 2020, compared to September 30, 2019, and the timing of vendor payments and customer receipts.

Investing Activities

Net cash used in investing activities decreased by $44.7 million, or 16.6%, to $224.1 million for the nine months ended September 30, 2020, compared to $268.8 million for the nine months ended September 30, 2019. This decrease was primarily due to the acquisition of SV9 for $26.0 million and higher construction expenditures on SV8 Phase 3, CH2 Phase 1, and LA3 Phase 1 during the nine months ended September 30, 2019.

Financing Activities

Net cash provided by financing activities was $29.1 million during the nine months ended September 30, 2020, compared to $83.1 million during the nine months ended September 30, 2019.

During the nine months ended September 30, 2020, we received cash proceeds of $150.0 million from the 2027 Notes and cash proceeds, net of payments, of $57.5 million on the revolving credit facility.

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During the nine months ended September 30, 2019, we received cash proceeds of $400.0 million from the 2026 and 2029 Notes and made cash payments, net of proceeds, of $149.3 million on the revolving credit facility.

We paid $177.6 million in dividends and distributions on our common stock and Operating Partnership units during the nine months ended September 30, 2020, compared to $165.3 million during the nine months ended September 30, 2019, as a result of an increase in our quarterly dividend to $3.66 per share or unit paid during the nine months ended September 30, 2020, from $3.42 per share or unit paid during the nine months ended September 30, 2019.

Analysis of Liquidity and Capital Resources

We have an effective shelf registration statement that allows us to offer for sale various unspecified classes of equity and debt securities. As circumstances warrant, we may issue debt and/or equity securities from time to time on an opportunistic basis, dependent upon market conditions and available pricing. We make no assurance that we can issue and sell such securities on acceptable terms or at all, especially in light of the market volatility and uncertainty as a result of the COVID-19 outbreak.

Our short-term liquidity requirements primarily consist of funds needed for interest expense, operating costs, including utilities, site maintenance costs, real estate and personal property taxes, insurance, rental expenses, sales and marketing and general and administrative expenses, certain capital expenditures, including for the development of data center space, discussed below, and future distributions to common stockholders and holders of our common Operating Partnership units during the next twelve months.

We expect to meet our short-term liquidity requirements through net cash on hand, cash provided by operations, and the $323.9 million available for us to borrow as of September 30, 2020, under our revolving credit facility. On May 6, 2020, we executed a 7-year $150 million unsecured private placement of senior notes with $100 million funded at closing and the remaining $50 million funded on July 14, 2020.

Our anticipated capital investment over the next twelve months includes a portion of the remaining estimated capital required to fund our current expansion projects under construction as of September 30, 2020, shown in the table below:

Costs (in thousands)

Metropolitan

Estimated

Incurred to-

Estimated

Percent

Power

Projects / Facilities

Market

Completion

NRSF

Date

Total

Leased

(MW)

New development⁽¹⁾

Ground-up construction

LA3 Phase 1

Los Angeles

Q4 2020

51,376

114,864

134,000

73.8

6.0

Total development

51,376

114,864

134,000

73.8

6.0

(1)	Includes a portion of the cost of infrastructure to support later phases of the development.

Our long-term liquidity requirements primarily consist of the costs to fund the Reston Campus Expansion, the ground up construction of new data center buildings, Deferred Expansion Capital, additional phases of our current projects under construction, future development of other space in our portfolio not currently scheduled, property acquisitions, future distributions to common stockholders and holders of our common Operating Partnership units, scheduled debt maturities and other capital expenditures. We expect to meet our long-term liquidity requirements through net cash provided by operations, and by incurring long-term indebtedness, such as drawing on our revolving credit facility, exercising our senior unsecured term loan accordion features or entering into new debt agreements with our bank group or existing and new accredited investors. We also may raise capital in the future through the issuance of additional equity or debt securities, subject to prevailing market conditions, and/or through the issuance of common Operating Partnership units. However, there is no assurance that we will be able to successfully raise additional capital on acceptable terms or at all.

In July 2017, the United Kingdom Financial Conduct Authority (the authority that regulates LIBOR) announced it intends to stop persuading or compelling banks to submit rates for the calculation of LIBOR after 2021. We have material contracts that are indexed to USD-LIBOR, including agreements governing certain of our indebtedness, and we are monitoring this activity and evaluating the related risks. Uncertainty as to the nature of such potential changes, alternative reference rates or other reforms may adversely affect the trading market for LIBOR-based securities, including our material contracts that are indexed to USD-LIBOR. Furthermore, we may need to renegotiate any credit agreements extending beyond 2021 that utilize LIBOR as a factor in determining the interest rate to replace LIBOR with

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the new standard established. In March 2020, the FASB issued guidance in ASU 2020-04, which provides optional expedients for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. We are currently evaluating the optional expedients and exceptions provided by ASU 2020-04 to determine the impact on our condensed consolidated financial statements.

Indebtedness

A summary of outstanding indebtedness as of September 30, 2020, and December 31, 2019, is as follows (in thousands):


		Maturity	September 30,		December 31,
	Interest Rate	Date	2020		2019
Revolving credit facility	1.40% and 3.01% at September 30, 2020, and December 31, 2019, respectively	November 8, 2023	$	120,000	$	62,500
2022 Senior unsecured term loan	1.76% and 2.96% at September 30, 2020, and December 31, 2019, respectively	April 19, 2022		200,000		200,000
2023 Senior unsecured notes	4.19% at September 30, 2020, and December 31, 2019, respectively	June 15, 2023		150,000		150,000
2024 Senior unsecured term loan	2.86% and 3.44% at September 30, 2020, and December 31, 2019, respectively	April 19, 2024		150,000		150,000
2024 Senior unsecured notes	3.91% at September 30, 2020, and December 31, 2019, respectively	April 20, 2024		175,000		175,000
2025 Senior unsecured term loan	2.32% and 2.81% at September 30, 2020, and December 31, 2019, respectively	April 1, 2025		350,000		350,000
2026 Senior unsecured notes	4.52% at September 30, 2020, and December 31, 2019, respectively	April 17, 2026		200,000		200,000
2027 Senior unsecured notes	3.75% at September 30, 2020	May 6, 2027		150,000		—
2029 Senior unsecured notes	4.31% at September 30, 2020, and December 31, 2019, respectively	April 17, 2029		200,000		200,000
Total principal outstanding				1,695,000		1,487,500
Unamortized deferred financing costs				(8,190)		(9,098)
Total debt			$	1,686,810	$	1,478,402

As of September 30, 2020, we were in compliance with the financial covenants under our revolving credit facility, senior unsecured term loans and senior unsecured notes. For additional information with respect to our outstanding indebtedness as of September 30, 2020, and December 31, 2019, as well as the available borrowing capacity under our existing revolving credit facility, debt covenant requirements, and future debt maturities, refer to Item 1. Financial Statements — Note 7 — Debt.

Funds From Operations

We consider funds from operations (“FFO”), a non-generally accepted accounting principles (“GAAP”) measure, to be a supplemental measure of our performance which should be considered along with, but not as an alternative to, net income and cash provided by operating activities as a measure of operating performance. We calculate FFO in accordance with the standards established by the National Association of Real Estate Investment Trusts (“Nareit”). Nareit defined FFO represents net income (computed in accordance with GAAP), excluding gains (or losses) from sales of property and undepreciated land and impairment write-downs of depreciable real estate, plus real estate related depreciation and amortization (excluding amortization of deferred financing costs) and after adjustments for unconsolidated partnerships and joint ventures.

Our management uses FFO as a supplemental performance measure because, in excluding real estate related depreciation and amortization and gains and losses from property dispositions, it provides a performance measure that, when compared year over year, captures trends in occupancy rates, rental rates and operating costs.

We offer this measure because we recognize that FFO will be used by investors as a basis to compare our operating performance with that of other REITs. However, because FFO excludes real estate related depreciation and amortization

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and captures neither the changes in the value of our properties that result from use or market conditions, nor the level of capital expenditures and capitalized leasing commissions necessary to maintain the operating performance of our properties, all of which have real economic effect and could materially impact our financial condition and results from operations, the utility of FFO as a measure of our performance is limited. FFO is a non-GAAP measure and should not be considered a measure of liquidity, an alternative to net income, cash provided by operating activities or any other performance measure determined in accordance with GAAP, nor is it indicative of funds available to fund our cash needs, including our ability to pay dividends or make distributions. In addition, our calculations of FFO are not necessarily comparable to FFO as calculated by other REITs that do not use the same definition or implementation guidelines or interpret the Nareit standards differently from us. Investors in our securities should not rely on these measures as a substitute for any GAAP measure, including net income. The following table provides a reconciliation of our net income to FFO (in thousands, except per share data):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Net income	$	24,132	$	22,644	$	72,208	$	74,292
Real estate depreciation and amortization		40,136		39,092		119,713		108,852
FFO attributable to common shares and units	$	64,268	$	61,736	$	191,921	$	183,144
Total weighted average shares and OP units outstanding - diluted		48,434		48,250		48,388		48,200
FFO per common share and OP unit - diluted	$	1.33	$	1.28	$	3.97	$	3.80

Distribution Policy

In order to comply with the REIT requirements of the Code, we generally are required to make annual distributions to our stockholders of at least 90% of our net taxable income. Our common stock distribution policy is to distribute as dividends, at a minimum, a percentage of our cash flow that ensures that we will meet the distribution requirements of the Code and any subsequent increases and/or anticipated increases are correlated to increases in our growth of cash flow.

We have made distributions every quarter since the completion of our initial public offering in 2010. During the nine months ended September 30, 2020, we declared quarterly dividends totaling $3.66 per share of common stock and Operating Partnership unit. While we plan to continue to make quarterly distributions, no assurances can be made as to the frequency or amounts of any future distributions. The payment of common stock distributions is dependent upon, among other things, restriction in agreements governing out indebtedness, our financial condition, operating results and REIT distribution requirements and may be adjusted at the discretion of our Board of Directors during the year.

The following table summarizes the taxability of our common stock dividends per share for the years ended December 31, 2019, and 2018:


	Year Ended December 31,
Record Date	2019		2018
Common Stock:
Ordinary income	$	3.07	$	3.09
Qualified dividend		—		—
Capital gains		—		—
Return of capital		1.57		0.93
Total dividend	$	4.64	$	4.02

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market risk refers to the risk of loss from adverse changes in market prices and interest rates. The primary market risk to which we believe we are exposed is interest rate risk. Our future income, cash flows and fair values relevant to financial instruments are dependent upon prevalent market interest rates. Many factors, including governmental monetary and tax policies, domestic and international economic and political considerations and other factors that are beyond our control contribute to interest rate risk.

As of September 30, 2020, we had $820.0 million of consolidated principal debt outstanding that bore variable interest based on one-month LIBOR. As of September 30, 2020, we have six interest rate swap agreements in place to fix the interest rate on $700.0 million of our one-month LIBOR variable rate debt. Our variable interest rate risk not covered by an interest rate swap agreement is $120.0 million of variable rate debt outstanding as of September 30, 2020. See additional discussion in Item 1. Financial Statements – Note 8 – Derivatives and Hedging Activities.

We monitor our market interest rate risk exposures using a sensitivity analysis. Our sensitivity analysis estimates the exposure to market interest rate risk sensitive instruments assuming a hypothetical 100 basis points change in interest rates on our $120.0 million of unhedged variable rate debt. If interest rates were to increase or decrease by 100 basis points, the corresponding increase or decrease, as applicable, in interest expense on our unhedged variable rate debt would increase or decrease, as applicable, future earnings and cash flows by approximately $1.2 million per year.

These analyses do not consider the effect of any change in overall economic activity that could impact interest rates. Further, in the event of an increase in interest rates of significant magnitude, we may take actions to further mitigate our exposure to the change. However, due to the uncertainty of the specific actions that would be taken and their possible effects, these analyses assume no changes in our financial structure.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures (as such term is defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in our reports under the Exchange Act is processed, recorded, summarized and reported within the time periods specified in the SEC’s rules and regulations and that such information is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As of September 30, 2020, we carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and our Chief Financial Officer, regarding the effectiveness of our disclosure controls and procedures. Based on the foregoing, our Chief Executive Officer and our Chief Financial Officer concluded that our disclosure controls and procedures were effective as of September 30, 2020.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15(d)-15(f) under the Exchange Act) that occurred during the three months ended September 30, 2020, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

In the ordinary course of our business, we are subject to claims and administrative proceedings. We are not presently party to any proceeding which we believe to be material or which we would expect to have, individually or in the aggregate, a material adverse effect on our business, financial condition, cash flows or results of operations.

ITEM 1A. RISK FACTORS

Except as described below, there have been no material changes to the risk factors included in the section entitled “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on February 7, 2020, which is accessible on the SEC’s website at www.sec.gov.

Pandemics or disease outbreaks, such as the novel coronavirus (“COVID-19”), may disrupt our business, as a result of, among other things, increased customer lease defaults, increased customer bankruptcies or insolvencies, delays in the development and lease-up of our properties, and severe disruption in the U.S. and global economies, which may further disrupt financial markets, and could materially adversely impact our financial condition, operations, and liquidity.

Our business could be materially and adversely affected by the outbreak of pandemics or disease outbreaks, such as COVID-19, or fear of such event, particularly in regions where we derive a significant amount of revenue or where our suppliers and customers are located, including North America. The COVID-19 outbreak is ongoing, and its dynamic nature, including uncertainties relating to the ultimate spread of the virus, severity of the disease, the duration of the outbreak, the total impact, financial and otherwise, that it will have on our suppliers and customers, and actions that may be taken by governmental authorities to contain the outbreak or treat its impact, makes it difficult to forecast the extent of the effects of the COVID-19 outbreak on our results of operations. The outbreak of COVID-19 continues to adversely impact global economic activity and has contributed to significant volatility and negative pressure in financial markets, which may cause a material adverse impact on our financial condition, operations and liquidity.

The effects of COVID-19 could affect our ability to successfully operate, in many ways, including, but not limited to, the following factors:

●

the continued service and availability of our employees, including executive officers and other key personnel, and the ability to recruit, attract, and retain skilled personnel – to the extent management or personnel are impacted in significant numbers by the outbreak of the pandemic or epidemic disease and are not available or allowed to conduct work or business;

●

difficulty accessing debt and equity on attractive terms, or at all, and a severe disruption and instability in the global financial markets or deteriorations in credit and financing conditions may affect our or our customers’ ability to access capital necessary to fund business operations or replace or renew maturing liabilities on a timely basis, and may adversely affect the valuation of financial assets;

●

ability to operate in affected areas, or delays in the supply of products or services from our vendors that are needed to operate efficiently or continue development activities;

●

ability to complete ongoing construction projects, or to commence new projects, due to governmental restrictions on construction activities or “shelter in place” orders or the ability of our general contractors and other vendors to maintain employee availability;

●

continued weakness in national, regional, local and global economies that negatively impacts the demand for data center space in our markets;

●

customers’ ability to pay rent on their leases and in the event of a significant number of lease defaults and/or customer bankruptcies, it may be difficult, costly, and time consuming to attract new customers and lease the space on terms as favorable as the previous leases or at all;

●

vendors’ ability to perform scheduled maintenance on time or other delays that may be encountered due to travel restrictions, “shelter in place” orders and resource constraints;

●

our ability to ensure business continuity in the event our continuity of operations plan is not effective or improperly implemented or deployed during a disruption;

●

the ability of our employees who do not work at our data centers to work effectively from remote locations in compliance with “shelter in place” orders; and

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●

our ability to operate, which may cause our business and operating results to decline or impact our ability to comply with regulatory obligations leading to reputational harm and regulatory issues or fines.

The rapid development and fluidity of this situation precludes any prediction as to the ultimate impact of COVID-19. The full extent of the impact and effects of COVID-19 on our future financial condition and performance are uncertain at this time. The impact will depend on future developments, including, among other factors, the duration and spread of the outbreak, along with related restrictions on movement and commercial activities, the recovery time of disrupted supply chains, consequential staffing shortages, development delays, and the uncertainty with respect to the accessibility of additional liquidity or to the capital markets.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

SALES OF UNREGISTERED EQUITY SECURITIES

None.

REPURCHASES OF EQUITY SECURITIES

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

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ITEM 6. EXHIBITS


Exhibit Number		Description
3.1		Articles of Amendment and Restatement of CoreSite Realty Corporation.(1)

3.2		Amended and Restated Bylaws of CoreSite Realty Corporation.(2)

4.1		Specimen certificate representing the Common Stock of CoreSite Realty Corporation.(3)

31.1†		Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2†		Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1+		Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

32.2+		Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS		XBRL Instance - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

101.SCH		XBRL Taxonomy Extension Schema Document.

101.CAL		XBRL Taxonomy Extension Calculation Linkbase Document.

101.LAB		XBRL Taxonomy Extension Labels Linkbase Document.

101.PRE		XBRL Taxonomy Extension Presentation Linkbase Document.

101.DEF 104		XBRL Taxonomy Extension Definition Linkbase Document. Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

(1)	Incorporated by reference to our Registration Statement (Amendment No. 7) on Form S-11 (Registration No. 333-166810) filed on September 22, 2010.

(2)	Incorporated by reference to Exhibit 3.1 to our Current Report on Form 8-K filed on March 9, 2017.

(3)	Incorporated by reference to our Post-Effective Amendment to our Registration Statement on Form S-11 (Registration No. 333-166810) filed on September 22, 2010.

† Filed herewith.

+ Furnished herewith.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


	CORESITE REALTY CORPORATION


Date: October 30, 2020	By:	/s/ Jeffrey S. Finnin
		Jeffrey S. Finnin
		Chief Financial Officer
		(Principal Financial Officer)


	By:	/s/ Mark R. Jones
		Mark R. Jones
		Chief Accounting Officer
		(Principal Accounting Officer)