Digital Realty Reports Third Quarter 2017 Results

SAN FRANCISCO, Oct. 25, 2017 /PRNewswire/ -- Digital Realty (NYSE: DLR), a leading global provider of data center, colocation and interconnection solutions, announced today financial results for the third quarter of 2017. All per-share results are presented on a fully-diluted share and unit basis.

Highlights

    --  Reported net loss available to common stockholders of ($0.02) per share
        in 3Q17, compared to $1.25 per share in 3Q16
    --  Reported FFO per share of $1.23 in 3Q17, compared to $1.31 in 3Q16
    --  Reported core FFO per share of $1.51 in 3Q17, compared to $1.44 in 3Q16
    --  Signed total bookings during 3Q17 expected to generate $58 million of
        annualized GAAP rental revenue, including an $8 million contribution
        from interconnection
    --  Raised 2017 core FFO per share outlook to $6.00 - $6.10 from $5.95 -
        $6.10

Financial Results

Digital Realty reported third quarter of 2017 revenues of $610 million, an 8% increase from the previous quarter and a 12% increase from the same quarter last year.

The company delivered third quarter of 2017 net income of $12 million, and a net loss available to common stockholders of ($4) million, or ($0.02) per diluted share, compared to net income available to common stockholders of $0.36 per diluted share in the previous quarter and $1.25 per diluted share in the same quarter last year.

Digital Realty generated third quarter of 2017 adjusted EBITDA of $352 million, a 7% increase from the previous quarter and a 15% increase over the same quarter last year.

The company reported third quarter of 2017 funds from operations ("FFO") on a fully diluted basis of $215 million, or $1.23 per share, compared to $1.44 per share in the previous quarter and $1.31 per share in same quarter last year.

Excluding certain items that do not represent core expenses or revenue streams, Digital Realty delivered third quarter of 2017 core FFO of $1.51 per share, a 2% decrease from $1.54 per share in the previous quarter, and a 5% increase from $1.44 per share in the same quarter last year.

Leasing Activity

"During the third quarter of 2017, we signed total bookings representing $58 million of annualized GAAP rental revenue, including an $8 million contribution from interconnection," said Chief Executive Officer A. William Stein. "Our third-quarter activity showcased the strengths of our diversified business, particularly the strategic importance of our expanded footprint in Ashburn, the largest and fastest-growing data center market in the world. In addition, colocation and interconnection continue to provide stable and healthy revenue drivers. Heading into the end of the year, we continue to see healthy demand across all three lines of the business, and are focused on fully integrating DuPont Fabros while executing against our goals as a combined organization."

The weighted-average lag between leases signed during the third quarter of 2017 and the contractual commencement date was four months.

In addition to new leases signed, Digital Realty also signed renewal leases representing $66 million of annualized GAAP rental revenue during the quarter. Rental rates on renewal leases signed during the third quarter of 2017 rolled down 3.8% on a cash basis and up 1.5% on a GAAP basis.

New leases signed during the third quarter of 2017 by region and product type are summarized as follows:


                          Annualized GAAP

                             Base Rent                        GAAP Base Rent                            GAAP Base Rent

    North America         (in thousands)  Square Feet         per Square Foot      Megawatts   per Kilowatt
                          -------------   -----------         ---------------                  ------------

    Turn-Key Flex                 $42,431             315,300                 $135                32                        $112

    Colocation                      5,077              18,092                  281                 1                         355

    Non-Technical                   2,058             102,203                   20                 -                          -

    Total                         $49,566             435,595                 $114                33                        $121


    Europe (1)

    Turn-Key Flex                       -                                   -                -                         -

    Powered Base Building               -                                   -                -                         -

    Colocation                       $839               1,538                 $546                 -                       $409

    Non-Technical                       -                                   -                -                         -

      Total                          $839               1,538                 $546                 -                       $409


    Asia Pacific (1)

    Turn-Key Flex                     $15                   -                   -                -                       $412

      Total                           $15                   -                   -                -                       $412


     Interconnection               $7,678                 N/A                 N/A              N/A                        N/A


    Grand Total                   $58,098             437,133                 $115                33                        $122


    Note:  Totals may not foot due to rounding
     differences.


    (1)              Based on quarterly average exchange
                     rates during the three months ended
                     September 30, 2017.

Investment Activity

During the third quarter of 2017, Digital Realty completed the previously announced acquisition of DuPont Fabros in an all-stock transaction valued at $7.9 billion in enterprise value.

Digital Realty also acquired land parcels adjacent to the company's existing holdings in Osaka, Japan and Garland, TX during the third quarter of 2017 for a total purchase price of approximately $10 million. The two parcels total 20 acres, and are expected to support the development of up to 51 megawatts of critical power. Commencement of development will be subject to market demand and delivery will be phased to facilitate customer expansion requirements upon completion of the company's existing projects in Osaka and Richardson, TX.

Likewise during the third quarter of 2017, Digital Realty recognized impairment losses of approximately $29 million on assets held for sale to reduce the carrying value of three properties to their estimated fair market value at September 30, 2017.

Separately, Digital Realty closed on the sale of 8025 North Interstate 35, a 62,000 square foot Powered Base Building data center in Austin, TX for $20 million. The property was 100% leased and was expected to generate cash net operating income of approximately $1 million in 2017, representing an exit cap rate of 5%. The sale generated net proceeds of approximately $20 million, and Digital Realty recognized a gain on the sale of approximately $10 million in the third quarter of 2017.

Subsequent to the end of the quarter, Digital Realty closed on the sale of 44874 Moran Road, a 78,000 square foot data center in Sterling, VA for $34 million. The property was 100% leased and was expected to generate cash net operating income of approximately $3 million in 2017, representing an exit cap rate of 7%. The property was held in a consolidated joint venture, in which Digital Realty owned a 75% stake. The sale generated net proceeds of $34 million, and Digital Realty expects to recognize a gain on the sale of approximately $15 million during the fourth quarter, or roughly $12 million, net of non-controlling interests.

Likewise subsequent to the end of the quarter, Digital Realty entered into a 50/50 joint venture with Mitsubishi Corporation to provide data center solutions in Japan. Mitsubishi Corporation will contribute two existing data center facilities in the western Tokyo suburb of Mitaka, while Digital Realty will contribute its recently completed data center development project in Osaka. The three seed assets are collectively valued at approximately 40 billion Japanese Yen, or approximately $350 million.

Also subsequent to quarter-end, Digital Realty entered into an agreement to acquire a 250,000 square foot data center on a 19-acre site in Northlake, Illinois from a non-traded, publicly registered REIT for a purchase price of $315 million. The property is located approximately four miles from the company's Franklin Park campus. Roughly three-fourths of the building has been developed and is fully leased, with the remaining 65,000 square feet of shell space available for build-out of approximately eight megawatts of critical load from a dedicated on-site sub-station. The transaction remains subject to certain closing conditions, and Digital Realty cannot provide any assurances if, or when the transaction will close.

Balance Sheet

Digital Realty had approximately $8.5 billion of total debt outstanding as of September 30, 2017, substantially all of which was unsecured. At the end of the third quarter of 2017, net debt-to-adjusted EBITDA was 6.0x, debt-plus-preferred-to-total enterprise value was 27.8% and fixed charge coverage was 3.9x.

During the third quarter of 2017, Digital Realty completed the following financing transactions.

    --  On July 21, 2017, Digital Realty issued £250 million of 2.75%
        Sterling-denominated notes due 2024 and £350 million of 3.30%
        Sterling-denominated notes due 2029, generating gross proceeds of
        approximately $780 million.
    --  On August 7, 2017, Digital Realty issued $350 million of 2.75% notes due
        2023 and $1.0 billion of 3.70% notes due 2027.
    --  Also on August 7, 2017, Digital Realty closed an offering of eight
        million shares of 5.25% Series J Cumulative Redeemable Preferred Stock
        at a price of $25.00 per share, generating gross proceeds of $200
        million.
    --  On September 14, 2017, Digital Realty closed the acquisition of DuPont
        Fabros, and exchanged approximately 43 million shares of DLR Common
        Stock and six million Operating Partnership Units for all of the
        outstanding common shares and units of DuPont Fabros, representing total
        consideration of approximately $6 billion.
    --  Likewise in conjunction with the closing of the DuPont Fabros
        acquisition on September 14, 2017, Digital Realty exchanged all the
        outstanding shares of DuPont Fabros' Series C Preferred Stock for 8.05
        million shares of Digital Realty Series C Preferred Stock, with a total
        liquidation value of $201 million.
    --  Digital Realty also purchased a portion of the DuPont Fabros 5.875%
        notes due 2021 and redeemed the remainder in mid-September. The
        aggregate principal amount totaled $600 million.
    --  Subsequent to the end of the quarter, Digital Realty redeemed DuPont
        Fabros' 5.625% notes due 2023. When Digital Realty assumed the bonds,
        the fair market value of $266 million was recorded on the balance sheet.
        The aggregate principal amount totaled $250 million and was redeemed in
        October 2017.

Non-GAAP Financial Measures

This press release contains non-GAAP financial measures, including FFO, core FFO, constant-currency core FFO, and Adjusted EBITDA. A reconciliation from U.S. GAAP net income available to common stockholders to FFO, a reconciliation from FFO to core FFO and constant-currency core FFO, and definitions of FFO, core FFO and constant-currency core FFO are included as an attachment to this document. A reconciliation from U.S. GAAP net income available to common stockholders to Adjusted EBITDA, a definition of Adjusted EBITDA and definitions of net debt-to-Adjusted EBITDA, debt-plus-preferred-to-total enterprise value, cash NOI, and fixed charge coverage ratio are included as an attachment to this document.

Investor Conference Call

Prior to Digital Realty's investor conference call at 5:30 p.m. EDT / 2:30 p.m. PDT on October 25, 2017, a presentation will be posted to the Investors section of the company's website at http://investor.digitalrealty.com. The presentation is designed to accompany the discussion of the company's third quarter 2017 financial results and operating performance. The conference call will feature Chief Executive Officer A. William Stein and Chief Financial Officer Andrew P. Power.

To participate in the live call, investors are invited to dial (888) 317-6003 (for domestic callers) or (412) 317-6061 (for international callers) and reference the conference ID# 9681339 at least five minutes prior to start time. A live webcast of the call will be available via the Investors section of Digital Realty's website at http://investor.digitalrealty.com.

Telephone and webcast replays will be available after the call until November 22, 2017. The telephone replay can be accessed by dialing (877) 344-7529 (for domestic callers) or (412) 317-0088 (for international callers) and providing the conference ID# 10111773. The webcast replay can be accessed on Digital Realty's website.

About Digital Realty

Digital Realty supports the data center, colocation and interconnection strategies of more than 2,300 firms across its secure, network-rich portfolio of data centers located throughout North America, Europe, Asia and Australia. Digital Realty's clients include domestic and international companies of all sizes, ranging from financial services, cloud and information technology services, to manufacturing, energy, gaming, life sciences and consumer products.

Additional information about Digital Realty is included in the Company Overview, available on the Investors page of Digital Realty's website at www.digitalrealty.com. The Company Overview is updated periodically, and may contain material information and updates. To receive e-mail alerts when the Company Overview is updated, please visit the Investors page of Digital Realty's website.

Contact Information

Andrew P. Power
Chief Financial Officer
Digital Realty
(415) 738-6500

John J. Stewart / Maria S. Lukens
Investor Relations
Digital Realty
(415) 738-6500

2017 Outlook

Digital Realty raised its 2017 core FFO per share outlook from $5.95 - $6.10 to $6.00 - $6.10. The assumptions underlying this guidance are summarized in the following table.


                                              As of                 As of                 As of                 As of                 As of

    Top-Line and Cost
     Structure                         Jan. 3, 2017         Feb. 16, 2017         Apr. 27, 2017         July 27, 2017      October 25, 2017

       2017 total revenue       $2.2 - $2.3 billion   $2.2 - $2.3 billion   $2.2 - $2.3 billion   $2.2 - $2.3 billion   $2.4 - $2.5 billion

       2017 net non-cash
        rent adjustments (1)     ($5 - $10 million)    ($5 - $10 million)    ($5 - $10 million)    ($5 - $10 million)    ($5 - $10 million)

       2017 Adjusted EBITDA
        margin                        57.0% - 59.0%        57.0% - 59.0%        57.0% - 59.0%        57.0% - 59.0%        57.0% - 59.0%

       2017 G&A margin                  6.0% - 7.0%          6.0% - 7.0%          6.0% - 7.0%          6.0% - 7.0%          6.0% - 7.0%


    Internal Growth

       Rental rates on
        renewal leases

          Cash basis              Slightly positive     Slightly positive     Slightly positive     Slightly positive     Slightly positive

          GAAP basis          Up high single-digits Up high single-digits Up high single-digits Up high single-digits Up high single-digits

       Year-end portfolio
        occupancy                        +/- 50 bps            +/- 50 bps            +/- 50 bps            +/- 50 bps            +/- 50 bps

       "Same-capital" cash
        NOI growth (2)                  2.0% - 3.0%          2.0% - 3.0%          2.0% - 3.0%          2.0% - 3.0%          3.0% - 3.5%


       Foreign Exchange Rates

          U.S. Dollar /Pound
           Sterling                   $1.20 - $1.24         $1.20 - $1.24         $1.20 - $1.28         $1.22 - $1.30         $1.26 - $1.30

          U.S. Dollar /Euro           $1.00 - $1.05         $1.00 - $1.05         $1.00 - $1.10         $1.05 - $1.15         $1.10 - $1.15



    External Growth

       Dispositions

       Dollar volume              $0 - $200 million     $0 - $200 million     $0 - $200 million     $0 - $200 million    $50 - $200 million

       Cap rate                        0.0% - 10.0%         0.0% - 10.0%         0.0% - 10.0%         0.0% - 10.0%         0.0% - 10.0%

       Development

       CapEx                    $0.8 - $1.0 billion   $0.8 - $1.0 billion   $0.8 - $1.0 billion   $0.8 - $1.0 billion   $0.9 - $1.0 billion

       Average stabilized
        yields                        10.0% - 12.0%        10.0% - 12.0%        10.0% - 12.0%        10.0% - 12.0%        10.0% - 12.0%

       Enhancements and other
        non-recurring CapEx
        (3)                      $20 - $25 million     $20 - $25 million     $20 - $25 million     $20 - $25 million     $20 - $25 million

       Recurring CapEx +
        capitalized leasing
        costs (4)               $125 - $135 million   $125 - $135 million   $125 - $135 million   $125 - $135 million   $125 - $135 million



    Balance Sheet

        Long-term debt
         issuance

        Dollar amount           $400 - $600 million   $400 - $600 million   $400 - $600 million          $770 million          $2.3 billion

        Pricing                       3.50% - 4.25%        3.50% - 4.25%        3.50% - 4.25%                 3.1%                  3.1%

        Timing                     Mid-to-late 2017      Mid-to-late 2017      Mid-to-late 2017              Mid-2017              Mid-2017



    Net income per diluted
     share                            $1.60 - $1.75         $1.60 - $1.75         $1.55 - $1.65         $1.55 - $1.65         $1.10 - $1.15

    Real estate
     depreciation and
     (gain)/loss on sale              $4.20 - $4.20         $4.20 - $4.20         $4.30 - $4.30         $4.30 - $4.30         $4.60 - $4.60

    Funds From Operations
     /share (NAREIT-
     Defined)                         $5.80 - $5.95         $5.80 - $5.95         $5.85 - $5.95         $5.85 - $5.95         $5.70 - $5.75

    Non-core expense and
     revenue streams                  $0.10 - $0.15         $0.10 - $0.15         $0.10 - $0.15         $0.10 - $0.15         $0.30 - $0.35

    Core Funds From
     Operations /share                $5.90 - $6.10         $5.90 - $6.10         $5.95 - $6.10         $5.95 - $6.10         $6.00 - $6.10

    Foreign currency
     translation
     adjustments                      $0.05 - $0.15         $0.05 - $0.15         $0.05 - $0.15         $0.05 - $0.15         $0.05 - $0.10

    Constant-Currency
     Core FFO /share                  $5.95 - $6.25         $5.95 - $6.25         $6.00 - $6.25         $6.00 - $6.25         $6.05 - $6.20


    (1)              Net non-cash rent adjustments
                     represents the sum of straight-
                     line rental revenue, straight-
                     line rent expense as well as the
                     amortization of above- and below-
                     market leases (i.e., FAS 141
                     adjustments).

    (2)              The "same-capital" pool includes
                     properties owned as of December
                     31, 2015 with less than 5% of the
                     total rentable square feet under
                     development.  It also excludes
                     properties that were undergoing,
                     or were expected to undergo,
                     development activities in 2016-
                     2017, properties classified as
                     held for sale, and properties sold
                     or contributed to joint ventures
                     for all periods presented.

    (3)              Other non-recurring CapEx
                     represents costs incurred to
                     enhance the capacity or
                     marketability of operating
                     properties, such as network fiber
                     initiatives and software
                     development costs.

    (4)              Recurring CapEx represents non-
                     incremental improvements required
                     to maintain current revenues,
                     including second-generation
                     tenant improvements and leasing
                     commissions.  Capitalized leasing
                     costs include capitalized leasing
                     compensation as well as
                     capitalized internal leasing
                     commissions.

Safe Harbor Statement

This press release contains forward-looking statements which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially, including statements related to the merger with DuPont Fabros Technology, Inc.; supply and demand for data center and colocation space; the expected timing, benefits and development of recent land acquisitions; impairment losses; our joint venture in Japan; acquisition and disposition activity, including transactions which are under agreement but subject to closing conditions; market dynamics and data center fundamentals; our strategic priorities; rent from leases that have been signed but have not yet commenced and other contracted rent to be received in future periods; rental rates on future leases; lag between signing and commencement; cap rates and yields; investment activity; expected capital markets activity; and the company's FFO, core FFO, constant-currency core FFO and net income outlook and underlying assumptions. These risks and uncertainties include, among others, the following: the impact of current global economic, credit and market conditions; current local economic conditions in the metropolitan areas in which we operate; decreases in information technology spending, including as a result of economic slowdowns or recession; adverse economic or real estate developments in our industry or the industry sectors that we sell to (including risks relating to decreasing real estate valuations and impairment charges); our dependence upon significant tenants; bankruptcy or insolvency of a major tenant or a significant number of smaller tenants; defaults on or non-renewal of leases by tenants; our failure to obtain necessary debt and equity financing; risks associated with using debt to fund our business activities, including re-financing and interest rate risks, our failure to repay debt when due, adverse changes in our credit ratings or our breach of covenants or other terms contained in our loan facilities and agreements; financial market fluctuations; changes in foreign currency exchange rates; our inability to manage our growth effectively; difficulty acquiring or operating properties in foreign jurisdictions; our failure to successfully integrate and operate acquired or developed properties or businesses; the suitability of our properties and data center infrastructure, delays or disruptions in connectivity, failure of our physical and information security infrastructure or services or availability of power; risks related to joint venture investments, including as a result of our lack of control of such investments; delays or unexpected costs in development of properties; decreased rental rates, increased operating costs or increased vacancy rates; increased competition or available supply of data center space; our inability to successfully develop and lease new properties and development space; difficulties in identifying properties to acquire and completing acquisitions; our inability to acquire off-market properties; the impact of the United Kingdom's referendum on withdrawal from the European Union on global financial markets and our business; our inability to comply with the rules and regulations applicable to reporting companies; our failure to maintain our status as a REIT; possible adverse changes to tax laws; restrictions on our ability to engage in certain business activities; environmental uncertainties and risks related to natural disasters; losses in excess of our insurance coverage; changes in foreign laws and regulations, including those related to taxation and real estate ownership and operation; and changes in local, state and federal regulatory requirements, including changes in real estate and zoning laws and increases in real property tax rates. For a further list and description of such risks and uncertainties, see the reports and other filings by the company with the U.S. Securities and Exchange Commission, including the company's Annual Report on Form 10-K for the year ended December 31, 2016, Quarterly Report on Form 10-Q for the quarters ended March 31, 2017 and June 30, 2017 and current report on Form 8-K filed July 10, 2017. The company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.


                                                                 Consolidated Quarterly Statements of Operations
                                                           Unaudited and in thousands, except share and per share data


                                                           Three Months Ended                                                      Nine Months Ended

                             30-Sep-17   30-Jun-17 31-Mar-17     31-Dec-16     30-Sep-16                   30-Sep-17     30-Sep-16
                             ---------   --------- ---------     ---------     ---------                   ---------     ---------

    Rental revenues             $440,591               $412,576                     $404,126                     $399,062              $395,212          $1,257,293      $1,143,449

    Tenant reimbursements -
     Utilities                    78,134                 68,407                       63,398                       63,956                68,168             209,939         189,486

    Tenant reimbursements -
     Other                        29,479                 24,935                       23,890                       23,853                27,497              78,304          78,608

    Interconnection & other       59,851                 58,301                       57,225                       55,094                53,897             175,377         149,223

    Fee income                     1,662                  1,429                        1,895                        1,718                 1,517               4,986           4,567

    Other                            208                    341                           35                       33,104                     2                 584              93

    Total Operating Revenues    $609,925               $565,989                     $550,569                     $576,787              $546,293          $1,726,483      $1,565,426


    Utilities                    $95,619                $82,739                      $77,198                      $76,896               $85,052            $255,556        $229,365

    Rental property
     operating                    94,442                 91,977                       92,141                       92,372                92,140             278,560         261,544

    Property taxes                32,586                 28,161                       26,919                       27,097                20,620              87,666          75,400

    Insurance                      2,590                  2,576                        2,592                        2,369                 2,470               7,758           7,123

    Depreciation &
     amortization                199,914                178,111                      176,466                      176,581               178,133             554,491         522,743

    General & administrative      41,477                 37,144                       33,778                       40,481                43,555             112,399         106,044

    Severance, equity
     acceleration, and legal
     expenses                      2,288                    365                          869                          672                 2,580               3,522           5,536

    Transaction and
     integration expenses         42,809                 14,235                        3,323                        8,961                 6,015              60,367          11,530

    Impairment of
     investments in real
     estate                       28,992                      -                           -                           -                    -             28,992               -

    Other expenses                 3,051                     24                            -                         236                  (22)              3,075            (23)

    Total Operating Expenses    $543,768               $435,332                     $413,286                     $425,665              $430,543          $1,392,386      $1,219,262


    Operating Income             $66,157               $130,657                     $137,283                     $151,122              $115,750            $334,097        $346,164


    Equity in earnings of
     unconsolidated joint
     ventures                     $5,880                 $8,388                       $5,324                       $4,742                $4,152             $19,592         $12,362

    Gain (loss) on real
     estate transactions           9,751                    380                        (522)                       (195)              169,000               9,609         170,097

    Interest and other
     income                        2,813                    367                          151                        (970)                  355               3,331         (3,594)

    Interest (expense)          (71,621)              (57,582)                    (55,450)                    (56,226)             (63,084)          (184,653)      (180,254)

    Tax (expense)                (2,494)               (2,639)                     (2,223)                     (2,304)              (3,720)            (7,356)        (8,081)

    Gain (loss) from early
     extinguishment of debt        1,990                      -                           -                        (29)                 (18)              1,990           (982)

    Net Income                   $12,476                $79,571                      $84,563                      $96,140              $222,435            $176,610        $335,712


    Net (income)
     attributable to non-
     controlling interests          (40)                 (920)                     (1,025)                     (1,065)              (3,247)            (1,985)        (4,600)

    Net Income Attributable
     to Digital Realty
     Trust, Inc.                 $12,436                $78,651                      $83,538                      $95,075              $219,188            $174,625        $331,112


    Preferred stock
     dividends, including
     undeclared dividends       (16,575)              (14,505)                    (17,393)                    (17,393)             (21,530)           (48,473)       (66,378)

    Issuance costs
     associated with
     redeemed preferred
     stock                             -               (6,309)                           -                           -             (10,328)            (6,309)       (10,328)


    Net (Loss) Income
     Available to Common
     Stockholders               ($4,139)               $57,837                      $66,145                      $77,682              $187,330            $119,843        $254,406


    Weighted-average shares
     outstanding - basic     170,194,254            160,832,889                  159,297,027                  158,956,606           147,397,853         163,481,306     146,930,939

    Weighted-average shares
     outstanding - diluted   170,194,254            161,781,868                  160,421,655                  159,699,411           149,384,871         164,371,096     147,655,184

    Weighted-average fully
     diluted shares and
     units                   174,169,511            164,026,578                  162,599,529                  162,059,914           151,764,542         166,937,862     150,076,482


    Net (loss) income per
     share -basic                ($0.02)                 $0.36                        $0.42                        $0.49                 $1.27               $0.73           $1.73

    Net (loss) income per
     share -diluted              ($0.02)                 $0.36                        $0.41                        $0.49                 $1.25               $0.73           $1.72


                                                         Funds From Operations and Core Funds From Operations
                                                          Unaudited and in thousands, except per share data


    Reconciliation of Net
     Income to Funds From
     Operations (FFO)                                   Three Months Ended                                                      Nine Months Ended
    ---------------------

                  30-Sep-17 30-Jun-17  31-Mar-17 31-Dec-16    30-Sep-16                30-Sep-17   30-Sep-16
                  --------- ---------  --------- ---------    ---------                ---------   ---------


    Net (Loss) Income
     Available to Common
     Stockholders             ($4,139)              $57,837                   $66,145                   $77,682                  $187,330            $119,843      $254,406

    Adjustments:

    Non-controlling
     interests in
     operating partnership        (79)                  807                       904                     1,154                     3,024               1,632         4,144

    Real estate related
     depreciation &
     amortization (1)          196,871               175,010                   173,447                   173,523                   175,332             545,328       509,287

    Impairment charge
     related to Telx trade
     name                            -                    -                        -                        -                        -                  -        6,122

    Unconsolidated JV real
     estate related
     depreciation &
     amortization                2,732                 2,754                     2,757                     2,823                     2,810               8,243         8,424

    (Gain) loss on real
     estate transactions       (9,751)                (380)                      522                       195                 (169,000)            (9,609)    (170,097)

    Impairment of
     investments in real
     estate                     28,992                     -                        -                        -                        -             28,992             -

    Funds From Operations     $214,626              $236,028                  $243,775                  $255,377                  $199,496            $694,429      $612,286


    Funds From Operations
     -diluted                 $214,626              $236,028                  $243,775                  $255,377                  $199,496            $694,429      $612,286


    Weighted-average
     shares and units
     outstanding - basic       173,461               163,078                   161,475                   161,317                   149,778             166,048       149,352

    Weighted-average
     shares and units
     outstanding -
     diluted (2)               174,170               164,027                   162,600                   162,060                   151,765             166,938       150,076


    Funds From Operations
     per share -basic            $1.24                 $1.45                     $1.51                     $1.58                     $1.33               $4.18         $4.10


    Funds From Operations
     per share -diluted
     (2)                        $1.23                 $1.44                     $1.50                     $1.58                     $1.31               $4.16         $4.08



                                                    Three Months Ended                                                Nine Months Ended

    Reconciliation of FFO
     to Core FFO            30-Sep-17  30-Jun-17 31-Mar-17    31-Dec-16   30-Sep-16                30-Sep-17    30-Sep-16
    ---------------------   ---------  --------- ---------    ---------   ---------                ---------    ---------


    Funds From Operations
     -diluted                 $214,626              $236,028                  $243,775                  $255,377                  $199,496            $694,429      $612,286

    Adjustments:

    Termination fees and
     other non-core
     revenues (3)                (208)                (341)                     (35)                 (33,104)                      (2)              (584)         (93)

    Transaction and
     integration expenses       42,809                14,235                     3,323                     8,961                     6,015              60,367        11,530

    Gain (loss) from early
     extinguishment of
     debt                      (1,990)                    -                        -                       29                        18             (1,990)          982

    Issuance costs
     associated with
     redeemed preferred
     stock                           -                6,309                         -                        -                   10,328               6,309        10,328

    Equity in earnings
     adjustment for non-
     core items                      -              (3,285)                        -                        -                        -            (3,285)            -

    Severance, equity
     acceleration, and
     legal expenses (4)          2,288                   365                       869                       672                     2,580               3,522         5,536

    Bridge facility fees
     (5)                        3,182                     -                        -                        -                        -              3,182             -

    Loss on currency
     forwards                        -                    -                        -                        -                        -                  -        3,082

    Other non-core
     expense adjustments         3,051                    24                         -                      236                      (22)              3,075          (23)

    Core Funds From
     Operations -diluted      $263,758              $253,335                  $247,932                  $232,171                  $218,413            $765,025      $643,628


    Weighted-average
     shares and units
     outstanding -
     diluted (2)               174,170               164,027                   162,600                   162,060                   151,765             166,938       150,076


    Core Funds From
     Operations per share
     -diluted (2)                $1.51                 $1.54                     $1.52                     $1.43                     $1.44               $4.58         $4.29



    (1)   Real Estate
     Related Depreciation
     & Amortization:                                Three Months Ended                                                Nine Months Ended

                            30-Sep-17  30-Jun-17 31-Mar-17    31-Dec-16   30-Sep-16                30-Sep-17    30-Sep-16
                            ---------  --------- ---------    ---------   ---------                ---------    ---------


    Depreciation &
     amortization per
     income statement         $199,914              $178,111                  $176,466                  $176,581                  $178,133            $554,491      $522,743

    Non-real estate
     depreciation              (3,043)              (3,101)                  (3,019)                  (3,058)                  (2,801)            (9,163)      (7,334)

    Impairment charge
     related to Telx trade
     name                            -                    -                        -                        -                        -                  -      (6,122)


    Real Estate Related
     Depreciation &
     Amortization             $196,871              $175,010                  $173,447                  $173,523                  $175,332            $545,328      $509,287


    (2)              For all periods presented, we have
                     excluded the effect of dilutive
                     series C, series E, series F,
                     series G, series H, series I and
                     series J preferred stock, as
                     applicable, that may be converted
                     upon the occurrence of specified
                     change in control transactions as
                     described in the articles
                     supplementary governing the series
                     C, the series E, series F, series
                     G, series H, series I, and series J
                     preferred stock, as applicable,
                     which we consider highly
                     improbable.  See above for
                     calculations of diluted FFO
                     available to common stockholders
                     and unitholders and below for
                     calculations of weighted average
                     common stock and units outstanding.

    (3)              Includes lease termination fees and
                     certain other adjustments that are
                     not core to our business.

    (4)              Relates to severance and other
                     charges related to the departure of
                     company executives and integration
                     related severance.

    (5)              Bridge facility fees included in
                     interest expense.


                                                                   Adjusted Funds From Operations (AFFO)
                                                             Unaudited and in Thousands, Except Per Share Data


                                                           Three Months Ended                                                     Nine Months Ended

    Reconciliation of Core FFO
     to AFFO                   30-Sep-17  30-Jun-17 31-Mar-17    31-Dec-16    30-Sep-16                 30-Sep-17    30-Sep-16
    -------------------------- ---------  --------- ---------    ---------    ---------                 ---------    ---------


    Core FFO available to
     common stockholders and
     unitholders                 $263,758              $253,335                   $247,932                   $232,171                   $218,413         $765,025       $643,628

    Adjustments:

    Non-real estate
     depreciation                   3,043                 3,101                      3,019                      3,058                      2,801            9,163          7,334

    Amortization of deferred
     financing costs                2,611                 2,518                      2,443                      2,455                      2,550            7,572          7,454

    Amortization of debt
     discount/premium                 816                   713                        697                        693                        693            2,226          2,029

    Non-cash stock-based
     compensation expense           4,636                 5,637                      3,704                      3,774                      4,041           13,977         12,091

    Straight-line rental
     revenue                      (1,692)              (2,110)                   (4,058)                   (5,210)                   (6,032)         (7,860)      (19,043)

    Straight-line rental
     expense                        4,212                 4,343                      4,187                      5,096                      6,402           12,742         17,990

    Above- and below-market
     rent amortization              (873)              (1,946)                   (1,973)                   (2,048)                   (2,002)         (4,792)       (6,265)

    Deferred non-cash tax
     expense                          284               (1,443)                     (653)                   (1,279)                     (189)         (1,812)         1,117

    Capitalized leasing
     compensation (1)             (2,945)              (2,740)                   (2,634)                   (3,644)                   (2,795)         (8,319)       (7,945)

    Recurring capital
     expenditures (2)            (34,664)             (26,740)                  (29,588)                  (21,246)                  (15,252)        (90,992)      (54,230)

    Capitalized internal
     leasing commissions          (1,225)              (1,355)                   (1,493)                   (1,835)                   (1,786)         (4,073)       (5,487)


    AFFO available to common
     stockholders and
     unitholders (3)             $237,961              $233,313                   $221,583                   $211,984                   $206,844         $692,857       $598,673


    Weighted-average shares
     and units outstanding -
     basic                        173,461               163,078                    161,475                    161,317                    149,778          166,048        149,352

    Weighted-average shares
     and units outstanding -
     diluted (4)                  174,170               164,027                    162,600                    162,060                    151,765          166,938        150,076


    AFFO per share -diluted
     (4)                           $1.37                 $1.42                      $1.36                      $1.31                      $1.36            $4.15          $3.99


    Dividends per share and
     common unit                    $0.93                 $0.93                      $0.93                      $0.88                      $0.88            $2.79          $2.64


    Diluted AFFO Payout Ratio       68.1%                65.4%                     68.2%                     67.3%                     64.6%           67.2%         66.2%



                                                       Three Months Ended                                               Nine Months Ended

    Share Count Detail         30-Sep-17  30-Jun-17 31-Mar-17    31-Dec-16    30-Sep-16                 30-Sep-17    30-Sep-16
    ------------------         ---------  --------- ---------    ---------    ---------                 ---------    ---------


    Weighted Average Common
     Stock and Units
     Outstanding                  173,461               163,078                    161,475                    161,317                    149,778          166,048        149,352

    Add: Effect of dilutive
     securities                       709                   949                      1,125                        743                      1,987              890            724


    Weighted Avg. Common Stock
     and Units Outstanding -
     diluted                      174,170               164,027                    162,600                    162,060                    151,765          166,938        150,076


    (1)              Includes only second generation
                     leasing costs.

    (2)              For a definition of recurring
                     capital expenditures, see our
                     supplemental operating and
                     financial data package.

    (3)              For a definition and discussion of
                     AFFO, see below.  For a
                     reconciliation of net income
                     available to common stockholders to
                     FFO and core FFO, see above.

    (4)              For all periods presented, we have
                     excluded the effect of dilutive
                     series C, series E, series F,
                     series G, series H, series I and
                     series J preferred stock, as
                     applicable, that may be converted
                     upon the occurrence of specified
                     change in control transactions as
                     described in the articles
                     supplementary governing the series
                     C, series E, series F, series G,
                     series H, series I, and series J
                     preferred stock, as applicable,
                     which we consider highly
                     improbable. See above for
                     calculations of diluted FFO
                     available to common stockholders
                     and unitholders and above for
                     calculations of weighted average
                     common stock and units outstanding.


                                                                 Consolidated Balance Sheets

                                                 Unaudited and in thousands, except share and per share data


                                           30-Sep-17     30-Jun-17     31-Mar-17     31-Dec-16     30-Sep-16
                                           ---------     ---------     ---------     ---------     ---------

    Assets

    Investments in real estate:

    Real estate                            $14,693,479                  $11,132,356                  $10,858,628    $10,630,514     $10,607,440

    Construction in
     progress                                1,405,740                      787,315                      780,966        732,430         681,189

    Land held for future
     development                               330,101                      262,139                      229,411        195,525         223,236

    Investments in Real
     Estate                                $16,429,320                  $12,181,810                  $11,869,005    $11,558,469     $11,511,865

    Accumulated
     depreciation &
     amortization                          (3,075,294)                 (2,929,095)                 (2,792,910)   (2,668,509)    (2,565,368)

    Net Investments in
     Properties                            $13,354,026                   $9,252,715                   $9,076,095     $8,889,960      $8,946,497

    Investment in
     unconsolidated joint
     ventures                                  106,374                      103,881                      112,856        106,402         105,819

    Net Investments in Real
     Estate                                $13,460,400                   $9,356,596                   $9,188,951     $8,996,362      $9,052,316


    Cash and cash
     equivalents                              $192,578                      $22,383                      $14,950        $10,528         $36,445

    Accounts and other
     receivables (1)                           258,490                      229,450                      195,406        203,938         208,097

    Deferred rent                              420,348                      423,188                      418,858        412,269         412,977

    Acquired in-place
     lease value, deferred
     leasing costs and
     other real estate
     intangibles, net                        3,052,277                    1,494,083                    1,501,843      1,522,378       1,526,563

    Acquired above-market
     leases, net                               178,190                       19,716                       20,826         22,181          24,554

    Goodwill                                 3,384,394                      778,862                      757,444        752,970         780,099

    Restricted cash                             17,753                       18,931                       10,447         11,508          11,685

    Assets associated with
     real estate held for
     sale                                      132,818                       87,882                       56,154         56,097          55,915

    Other assets                               135,250                      148,480                      164,669        204,354         190,384


    Total Assets                           $21,232,498                  $12,579,571                  $12,329,548    $12,192,585     $12,299,035


    Liabilities and Equity

    Global unsecured
     revolving credit
     facility                                 $138,477                     $563,063                     $564,467       $199,209        $153,189

    Unsecured term loan                      1,432,659                    1,520,482                    1,505,667      1,482,361       1,521,613

    Unsecured senior notes,
     net of discount                         6,806,333                    4,351,148                    4,128,110      4,153,797       4,238,435

    Mortgage loans, net of
     premiums                                  106,775                        2,927                        3,085          3,240         111,750

    Accounts payable and
     other accrued
     liabilities                             1,024,394                      850,602                      804,371        824,878         823,905

    Accrued dividends and
     distributions                                   -                           -                           -       144,194               -

    Acquired below-market
     leases                                    257,732                       76,099                       78,641         81,899          86,888

    Security deposits and
     prepaid rent                              223,536                      181,007                      171,692        168,111         163,787

    Liabilities associated
     with assets held for
     sale                                        4,660                        2,949                        3,070          2,599           2,820

    Total Liabilities                       $9,994,566                   $7,548,277                   $7,259,103     $7,060,288      $7,102,387

    Redeemable
     noncontrolling
     interests - operating
     partnership                                64,509                            -                           -             -              -


    Equity

    Preferred Stock:  $0.01 par value per
     share, 110,000,000 shares authorized:

    Series C Cumulative
     Redeemable Perpetual
     Preferred Stock (2)                      $219,250                            -                           -             -              -

    Series F Cumulative
     Redeemable Preferred
     Stock (3)                                       -                           -                    $176,191       $176,191        $176,191

    Series G Cumulative
     Redeemable Preferred
     Stock (4)                                $241,468                      241,468                      241,468        241,468         241,468

    Series H Cumulative
     Redeemable Preferred
     Stock (5)                                 353,290                      353,290                      353,290        353,290         353,290

    Series I Cumulative
     Redeemable Preferred
     Stock (6)                                 242,012                      242,012                      242,012        242,012         242,012

    Series J Cumulative
     Redeemable Preferred
     Stock (7)                                 193,667                            -                           -             -              -

    Common Stock: $0.01 par
     value per share,
     315,000,000 shares
     authorized (8)                              2,043                        1,611                        1,584          1,582           1,581

    Additional paid-in
     capital                                11,250,322                    5,991,753                    5,769,091      5,764,497       5,759,338

    Dividends in excess of
     earnings                              (1,917,791)                 (1,722,610)                 (1,629,633)   (1,547,420)    (1,483,223)

    Accumulated other
     comprehensive (loss)
     income, net                             (116,732)                   (110,709)                   (122,540)     (135,605)      (131,936)

    Total Stockholders'
     Equity                                $10,467,529                   $4,996,815                   $5,031,463     $5,096,015      $5,158,721


    Non-controlling Interests

    Non-controlling
     interest in operating
     partnership                              $699,308                      $27,909                      $32,409        $29,684         $31,088

    Non-controlling
     interest in
     consolidated joint
     ventures                                    6,586                        6,570                        6,573          6,598           6,839


    Total Non-controlling
     Interests                                $705,894                      $34,479                      $38,982        $36,282         $37,927


    Total Equity                           $11,173,423                   $5,031,294                   $5,070,445     $5,132,297      $5,196,648


    Total Liabilities and
     Equity                                $21,232,498                  $12,579,571                  $12,329,548    $12,192,585     $12,299,035


    (1)              Net of allowance for doubtful
                     accounts of $6,187 and $7,446 as of
                     September 30, 2017 and December 31,
                     2016, respectively.

    (2)              Series C Cumulative Redeemable
                     Perpetual Preferred Stock, 6.625%,
                     $201,250 and $0 liquidation
                     preference, respectively ($25.00
                     per share), 8,050,000 and 0 shares
                     issued and outstanding as of
                     September 30, 2017 and December 31,
                     2016, respectively.

    (3)              Series F Cumulative Redeemable
                     Preferred Stock, 6.625%, $0 and
                     $182,500 liquidation preference,
                     respectively ($25.00 per share), 0
                     and 7,300,000 shares issued and
                     outstanding as of September 30,
                     2017 and December 31, 2016,
                     respectively.  All outstanding
                     shares of Series F Cumulative
                     Redeemable Preferred Stock were
                     redeemed on April 5, 2017.

    (4)              Series G Cumulative Redeemable
                     Preferred Stock, 5.875%, $250,000
                     and $250,000 liquidation
                     preference, respectively ($25.00
                     per share), 10,000,000 and
                     10,000,000 shares issued and
                     outstanding as of September 30,
                     2017 and December 31, 2016,
                     respectively.

    (5)              Series H Cumulative Redeemable
                     Preferred Stock, 7.375%, $365,000
                     and $365,000 liquidation
                     preference, respectively ($25.00
                     per share), 14,600,000 and
                     14,600,000 shares issued and
                     outstanding as of September 30,
                     2017 and December 31, 2016,
                     respectively.

    (6)              Series I Cumulative Redeemable
                     Preferred Stock, 6.350%, $250,000
                     and $250,000 liquidation
                     preference, respectively ($25.00
                     per share), 10,000,000 and
                     10,000,000 shares issued and
                     outstanding as of September 30,
                     2017 and December 31, 2016,
                     respectively.

    (7)              Series J Cumulative Redeemable
                     Preferred Stock, 5.250%, $200,000
                     and $0 liquidation preference,
                     respectively ($25.00 per share),
                     8,000,000 and 0 shares issued and
                     outstanding as of September 30,
                     2017 and December 31, 2016,
                     respectively.

    (8)              Common Stock: 205,433,495 and
                     146,384,247 shares issued and
                     outstanding as of September 30,
                     2017 and December 31, 2016,
                     respectively.


    Reconciliation of
     Earnings Before
     Interest, Taxes,                                  Three Months Ended

    Depreciation &
     Amortization (EBITDA)
     (1)

                  30-Sep-17 30-Jun-17  31-Mar-17 31-Dec-16    30-Sep-16
                  --------- ---------  --------- ---------    ---------


    Net (Loss) Income
     Available to Common
     Stockholders             ($4,139)              $57,837               $66,145     $77,682    $187,330

    Interest                    71,621                57,582                55,450      56,226      63,084

    (Gain) loss from early
     extinguishment of
     debt                      (1,990)                    -                    -         29          18

    Tax expense                  2,494                 2,639                 2,223       2,304       3,720

    Depreciation &
     amortization              199,914               178,111               176,466     176,581     178,133

    Impairment of
     investments in real
     estate                     28,992                     -                    -          -          -

    EBITDA                    $296,892              $296,169              $300,284    $312,822    $432,285

    Severance-related
     expense, equity
     acceleration, and
     legal expenses              2,288                   365                   869         672       2,580

    Transaction and
     integration expenses       42,809                14,235                 3,323       8,961       6,015

    (Gain) loss on real
     estate transactions       (9,751)                (380)                  522         195   (169,000)

    Non-cash (gain) on
     lease termination (2)           -                    -                    -   (29,205)          -

    Equity in earnings
     adjustment for non-
     core items                      -              (3,285)                    -          -          -

    Other non-core
     expense adjustments         3,051                    24                     -        236        (22)

    Non-controlling
     interests                      40                   920                 1,025       1,065       3,247

    Preferred stock
     dividends, including
     undeclared dividends       16,575                14,505                17,393      17,393      21,530

    Issuance costs
     associated with
     redeemed preferred
     stock                           -                6,309                     -          -     10,328
                                   ---                -----                   ---        ---     ------

    Adjusted EBITDA           $351,904              $328,862              $323,416    $312,139    $306,963


    (1)              For definition and
                     discussion of EBITDA and
                     Adjusted EBITDA, see
                     below.

    (2)              Q4 2016 amount included in
                     Other revenue on the
                     income statement.

Definitions

Funds from Operations (FFO):
We calculate funds from operations, or FFO, in accordance with the standards established by the National Association of Real Estate Investment Trusts, or NAREIT. FFO represents net income (loss) (computed in accordance with GAAP), excluding gains (or losses) from real estate transactions, impairment charges, real estate related depreciation and amortization (excluding amortization of deferred financing costs), non-controlling interests in operating partnership and after adjustments for unconsolidated partnerships and joint ventures. Management uses FFO as a supplemental performance measure because, in excluding real estate related depreciation and amortization and gains and losses from property dispositions and after adjustments for unconsolidated partnerships and joint ventures, it provides a performance measure that, when compared year over year, captures trends in occupancy rates, rental rates and operating costs. We also believe that, as a widely recognized measure of the performance of REITs, FFO will be used by investors as a basis to compare our operating performance with that of other REITs. However, because FFO excludes depreciation and amortization 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. Other REITs may not calculate FFO in accordance with the NAREIT definition and, accordingly, our FFO may not be comparable to such other REITs' FFO. Accordingly, FFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

Core Funds from Operations:
We present core funds from operations, or core FFO, as a supplemental operating measure because, in excluding certain items that do not reflect core revenue or expense streams, it provides a performance measure that, when compared year over year, captures trends in our core business operating performance. We calculate core FFO by adding to or subtracting from FFO (i) termination fees and other non-core revenues, (ii) transaction and integration expenses, (iii) gain (loss) from early extinguishment of debt, (iv) issuance costs associated with redeemed preferred stock, (v) equity in earnings adjustment for non-core items (vi) severance, equity acceleration, and legal expenses, (vii) bridge facility fees, (viii) loss on currency forwards and (ix) other non-core expense adjustments. Because certain of these adjustments have a real economic impact on our financial condition and results from operations, the utility of core FFO as a measure of our performance is limited. Other REITs may not calculate core FFO in a consistent manner. Accordingly, our core FFO may not be comparable to other REITs' core FFO. Core FFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

Constant-Currency Core Funds from Operations:
We calculate constant-currency core funds from operations by adjusting the core funds from operations for foreign currency translations.

Adjusted Funds from Operations (AFFO):
We present adjusted funds from operations, or AFFO, as a supplemental operating measure because, when compared year over year, it assesses our ability to fund dividend and distribution requirements from our operating activities. We also believe that, as a widely recognized measure of the operations of REITs, AFFO will be used by investors as a basis to assess our ability to fund dividend payments in comparison to other REITs, including on a per share and unit basis. We calculate AFFO by adding to or subtracting from core FFO (i) non-real estate depreciation, (ii) amortization of deferred financing costs, (iii) amortization of debt discount/premium, (iv) non-cash stock-based compensation expense, (v) straight-line rent revenue, (vi) straight-line rent expense, (vii) above- and below-market rent amortization, (viii) deferred non-cash tax expense, (ix) capitalized leasing compensation, (x) recurring capital expenditures and (xi) capitalized internal leasing commissions. Other REITs may not calculate AFFO in a consistent manner. Accordingly, our AFFO may not be comparable to other REITs' AFFO. AFFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

EBITDA and Adjusted EBITDA:
We believe that earnings before interest, loss from early extinguishment of debt, income taxes and depreciation and amortization, or EBITDA, and Adjusted EBITDA (as defined below), are useful supplemental performance measures because they allow investors to view our performance without the impact of non-cash depreciation and amortization or the cost of debt and, with respect to Adjusted EBITDA, severance-related expense, equity acceleration, and legal expenses, transaction and integration expenses, (gain) loss on real estate transactions, non-cash (gain) on lease termination, equity in earnings adjustment for non-core items, other non-core expense adjustments, noncontrolling interests, preferred stock dividends, including undeclared dividends, and issuance costs associated with redeemed preferred stock. Adjusted EBITDA is EBITDA excluding severance-related expense, equity acceleration, and legal expenses, transaction and integration expenses, (gain) loss on real estate transactions, non-cash (gain) on lease termination, equity in earnings adjustment for non-core items, other non-core expense adjustments, non-controlling interests, preferred stock dividends, including undeclared dividends, and issuance costs associated with redeemed preferred stock. In addition, we believe EBITDA and Adjusted EBITDA are frequently used by securities analysts, investors and other interested parties in the evaluation of REITs. Because EBITDA and Adjusted EBITDA are calculated before recurring cash charges including interest expense and income taxes, exclude capitalized costs, such as leasing commissions, and are not adjusted for capital expenditures or other recurring cash requirements of our business, their utility as a measure of our performance is limited. Other REITs may calculate EBITDA and Adjusted EBITDA differently than we do; accordingly, our EBITDA and Adjusted EBITDA may not be comparable to such other REITs' EBITDA and Adjusted EBITDA. Accordingly, EBITDA and Adjusted EBITDA should be considered only as supplements to net income computed in accordance with GAAP as a measure of our financial performance.

Net Operating Income (NOI) and Cash NOI:
Net operating income, or NOI, represents rental revenue, tenant reimbursement revenue and interconnection revenue less utilities expense, rental property operating expenses, property taxes and insurance expenses (as reflected in the statement of operations). NOI is commonly used by stockholders, company management and industry analysts as a measurement of operating performance of the company's rental portfolio. Cash NOI is NOI less straight-line rents and above and below market rent amortization. Cash NOI is commonly used by stockholders, company management and industry analysts as a measure of property operating performance on a cash basis. However, because NOI and cash NOI exclude depreciation and amortization and capture 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 results from operations, the utility of NOI and cash NOI as measures of our performance is limited. Other REITs may not calculate NOI and cash NOI in the same manner we do and, accordingly, our NOI and cash NOI may not be comparable to such other REITs' NOI and cash NOI. Accordingly, NOI and cash NOI should be considered only as supplements to net income computed in accordance with GAAP as measures of our performance.

Additional Definitions
Net debt-to-Adjusted EBITDA ratio is calculated using total debt at balance sheet carrying value, plus capital lease obligations, plus our share of JV debt, less unrestricted cash and cash equivalents divided by the product of Adjusted EBITDA (inclusive of our share of JV EBITDA) multiplied by four.

Debt-plus-preferred-to-total enterprise value is mortgage debt and other loans plus preferred stock divided by mortgage debt and other loans plus the liquidation value of preferred stock and the market value of outstanding Digital Realty Trust, Inc. common stock and Digital Realty Trust, L.P. units, assuming the redemption of Digital Realty Trust, L.P. units for shares of Digital Realty Trust, Inc. common stock.

Fixed charge coverage ratio is Adjusted EBITDA divided by the sum of GAAP interest expense, capitalized interest, scheduled debt principal payments and preferred dividends. For the quarter ended September 30, 2017, GAAP interest expense was $72 million, capitalized interest was $5 million and scheduled debt principal payments and preferred dividends was $17 million.


                                      Three Months Ended                 Nine Months Ended

    Reconciliation of Net
     Operating Income
     (NOI) (in thousands) 30-Sep-17  30-Jun-17   30-Sep-16   30-Sep-17 30-Sep-16
    --------------------- ---------  ---------   ---------   --------- ---------


    Operating income         $66,157                $130,657               $115,750          $334,097    $346,164


    Fee income               (1,662)                (1,429)               (1,517)          (4,986)    (4,567)

    Other income               (208)                  (341)                   (2)            (584)       (93)

    Depreciation and
     amortization            199,914                 178,111                178,133           554,491     522,743

    General and
     administrative           41,477                  37,144                 43,555           112,399     106,044

    Severance related
     expense, equity
     acceleration, and
     legal expenses            2,288                     365                  2,580             3,522       5,536

    Transaction expenses      42,809                  14,235                  6,015            60,367      11,530

    Impairment in
     investments in real
     estate                   28,992                       -                     -           28,992           -

    Other expenses             3,051                      24                   (22)            3,075        (23)


    Net Operating Income    $382,818                $358,766               $344,492        $1,091,373    $987,334



    Cash Net Operating
     Income (Cash NOI)


    Net Operating Income    $382,818                $358,766               $344,492        $1,091,373    $987,334

    Straight-line rent,
     net                       2,436                   2,206                    205             4,842     (1,677)

    Above- and below-
     market rent
     amortization              (873)                (1,946)               (2,002)          (4,920)    (6,265)


    Cash Net Operating
     Income                 $384,381                $359,026               $342,695        $1,091,295    $979,392

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SOURCE Digital Realty