Release Details

Calix Reports Fourth Quarter and Fiscal Year 2011 Financial Results

February 7, 2012

Revenue Increases 9.5% Sequentially in Q4 2011; Up 20.1% Over Fiscal Year 2010 to $344.7 Million

PETALUMA, CA, Feb 07, 2012 (MARKETWIRE via COMTEX) --Calix, Inc. (NYSE: CALX) today announced unaudited financial results for the fourth quarter ended December 31, 2011. Revenue for the fourth quarter of 2011 was $91.6 million, an increase of 9.5% compared to $83.7 million for the third quarter of 2011, and flat compared to $91.7 million for the fourth quarter of 2010.

"2011 ended on a strong note as a result of increasing demand and solid execution in all areas of the business," said Carl Russo, Calix president and CEO. "Looking back on the year, we were pleased with the progress we made strengthening our organization, expanding our Unified Access portfolio, and delivering on our vision of network transformation to our over 1000 communications service provider customers worldwide."

Non-GAAP net income for the fourth quarter of 2011 was $3.7 million, or $0.08 per fully diluted share, an increase of 5.4% compared to non-GAAP net income of $3.6 million, or $0.07 per fully diluted share for the third quarter of 2011, and a decrease of 65.0% compared to non-GAAP net income of $10.7 million, or $0.26 per fully diluted share, in the fourth quarter of 2010.

GAAP net loss for the fourth quarter of 2011 was $5.2 million, or $(0.11) per basic and diluted share, compared to a GAAP net loss of $6.9 million, or $(0.15) per basic and diluted share for the third quarter of 2011, and compared to a GAAP net loss of $0.7 million, or $(0.02) per basic and diluted share reported for the fourth quarter of 2010. A reconciliation of our fourth quarter 2011 operating results from non-GAAP to GAAP is provided below (in thousands, except per share data):

                                                     Amortization
                                      Stock-Based   of Intangible
                           Non-GAAP   Compensation      Assets       GAAP
                           --------  -------------  -------------  --------
Revenue                    $ 91,585  $           -  $           -  $ 91,585
Cost of revenue              52,127            362          2,042    54,531
                           --------  -------------  -------------  --------
Gross profit                 39,458           (362)        (2,042)   37,054
Operating expense            35,653          4,004          2,553    42,210
                           --------  -------------  -------------  --------
Operating income (loss)       3,805         (4,366)        (4,595)   (5,156)
Other income/(expense),
 net                            (10)             -              -       (10)
                           --------  -------------  -------------  --------
Income (loss) before taxes    3,795         (4,366)        (4,595)   (5,166)
Provision for income taxes       48              -              -        48
                           --------  -------------  -------------  --------
Net income (loss)          $  3,747  $      (4,366) $      (4,595) $ (5,214)
                           ========  =============  =============  ========

Weighted average basic and
 diluted shares used to
 compute GAAP net loss per
 common share                                                        47,398
                                                                   ========
Weighted average diluted
 shares used to compute
 non-GAAP net income per
 common share                47,570         47,570         47,570
                           ========  =============  =============
GAAP net loss per common
 share                                                             $  (0.11)
                                                                   ========
Non-GAAP net income (loss)
 per share                 $   0.08  $       (0.09) $       (0.10)
                           ========  =============  =============



Conference Call

In conjunction with this announcement, Calix will host a conference call to discuss its fourth quarter and fiscal year 2011 results at 1:30 p.m. PST (4:30 p.m. EST) today. Interested parties can listen to a live webcast of the conference call by visiting the Calix Investor Relations website at http://investor-relations.calix.com. To access the live webcast, please log in 10 minutes prior to the start of the call to download and install any necessary audio software. Interested parties may also dial into the live conference call at (877) 407-4019 (U.S.) or (201) 689-8337 (outside the U.S.). The conference call and webcast will include forward-looking information. A replay of the conference call will be available approximately one hour after the live call concludes on the company's web site at http://investor-relations.calix.com.

Prior to the conference call, Calix will also post supplemental financial data on the Calix Investor Relations website at http://investor-relations.calix.com in order to provide the investment community additional time to analyze the company's results and prepare for the call with management.

About Calix

Calix (NYSE: CALX) is a global leader in access innovation. Its Unified Access portfolio of broadband communications access systems and software enable communications service providers worldwide to transform their networks and become the broadband provider of choice to their subscribers. For more information, visit the Calix website at www.calix.com.

Use of Non-GAAP Financial Information

The Company uses certain non-GAAP financial measures in this press release to supplement its consolidated financial statements, which are presented in accordance with GAAP. These non-GAAP measures include non-GAAP net income and non-GAAP basic and diluted net income per common share. These non-GAAP measures are provided to enhance the reader's understanding of the Company's operating performance as they primarily exclude certain non-cash charges for stock-based compensation and amortization of acquisition-related intangible assets, and non-recurring merger-related and other expenses, which the Company believes are not indicative of its core operating results. Merger-related and other expenses largely include the charge resulting from the required revaluation of Occam inventory to its estimated fair value, legal and professional expenses, and severance and integration-related expenses and inventory-related charges associated with our merger with Occam. Management believes that the non-GAAP measures used in this press release provide investors with important perspective into the Company's ongoing business performance and management uses these non-GAAP measures to evaluate financial results and to establish operational goals. The presentation of these non-GAAP measures is not meant to be a substitute for results presented in accordance with GAAP, but rather should be evaluated in conjunction with those GAAP results. A reconciliation of the non-GAAP results to the most directly comparable GAAP results is provided in the financial schedules portion of this press release. The non-GAAP financial measures used by the company may be calculated differently from, and therefore may not be comparable to, similarly titled measures used by other companies.

                                CALIX, INC.
                     Condensed Statement of Operations
                   (In thousands, except per share data)

                                Three Months Ended
                          -----------------------------      Years Ended
                          December  September  December     December 31,
                             31,        24,       31,    ------------------
                            2011       2011      2010      2011      2010
                          --------  ---------  --------  --------  --------
                                   (unaudited)               (unaudited)
Revenue                   $ 91,585  $  83,655  $ 91,695  $344,669  $287,043
Cost of revenue:
  Products and
   services(1)              52,489     49,002    51,679   195,698   168,873
  Merger-related expenses        -          -         -    19,966         -
  Amortization of
   intangible assets         2,042      2,806     1,360     9,552     5,440
                          --------  ---------  --------  --------  --------
Total cost of revenue       54,531     51,808    53,039   225,216   174,313
                          --------  ---------  --------  --------  --------
  Gross profit              37,054     31,847    38,656   119,453   112,730

Operating expenses:
  Research and
   development(1)           17,385     16,717    16,180    67,725    55,412
  Sales and marketing(1)    16,720     12,593    13,107    55,551    42,121
  General and
   administrative(1)         5,552      5,475     8,483    27,002    27,998
  Merger-related and
   other expenses                -      1,404     1,805    12,927     3,942
  Amortization of
   intangible assets         2,553      2,552       185     8,569       740
                          --------  ---------  --------  --------  --------
Total operating expenses    42,210     38,741    39,760   171,774   130,213
                          --------  ---------  --------  --------  --------
Loss from operations        (5,156)    (6,894)   (1,104)  (52,321)  (17,483)

Other income (expense):
  Interest income                7         11        88        87       384
  Interest expense             (45)       (48)      (50)     (184)   (1,188)
  Change in fair value of
   preferred stock
   warrants                      -          -         -         -      (173)
  Other income                  28         35       (25)       92       (12)
                          --------  ---------  --------  --------  --------
Loss before provision
 (benefit) for income
 taxes                      (5,166)    (6,896)   (1,091)  (52,326)  (18,472)
Provision (benefit) for
 income taxes                   48         38      (354)      224        81
                          --------  ---------  --------  --------  --------
Net loss                    (5,214)    (6,934)     (737)  (52,550)  (18,553)
Preferred stock dividends        -          -         -         -       900
                          --------  ---------  --------  --------  --------
Net loss attributable to
 common stockholders      $ (5,214) $  (6,934) $   (737) $(52,550) $(19,453)
                          ========  =========  ========  ========  ========

Net loss per common
 share:
  Basic and diluted       $  (0.11) $   (0.15) $  (0.02) $  (1.15) $  (0.65)
                          ========  =========  ========  ========  ========
  Pro forma basic and
   diluted                $  (0.11) $   (0.15) $  (0.02) $  (1.15) $  (0.51)
                          ========  =========  ========  ========  ========

Weighted average number
 of shares used to
 compute net loss per
 common share:
  Basic and diluted         47,398     47,128    38,144    45,546    29,778
                          ========  =========  ========  ========  ========
  Pro forma basic and
   diluted(2)               47,398     47,128    38,144    45,546    36,232
                          ========  =========  ========  ========  ========


(1) Includes stock-based
    compensation as follows:
                                 Three Months Ended
                           -----------------------------      Years Ended
                           December  September  December     December 31,
                              31,        24,       31,    ------------------
                             2011       2011      2010      2011      2010
                           --------  ---------  --------  --------  --------
                                    (unaudited)               (unaudited)
    Cost of revenue        $    362  $     306  $    593  $  1,503  $  1,745
    Research and
     development              1,067        886     1,952     4,828     5,966
    Sales and marketing       1,244      1,127     1,521     4,500     4,555
    General and
     administrative           1,693      1,407     4,027     9,538    13,309
    Merger-related
     expenses                     -         70         -     1,234         -
                           --------  ---------  --------  --------  --------
                           $  4,366  $   3,796  $  8,093  $ 21,603  $ 25,575
                           ========  =========  ========  ========  ========

(2) For the year ended December 31, 2010, includes outstanding common shares
and common shares resulting from the assumed conversion of preferred shares
as if conversion occurred at the beginning of the year ended December 31,
2010.


                                CALIX, INC.
                 Reconciliation of GAAP to Non-GAAP Results
              (Unaudited, in thousands except per share data)

                                Three Months Ended
                          -----------------------------      Years Ended
                          December  September  December      December 31,
                             31,        24,       31,    ------------------
                            2011       2011      2010      2011      2010
                          --------  ---------  --------  --------  --------

GAAP net loss
 attributable to common
 stockholders             $ (5,214) $  (6,934) $   (737) $(52,550) $(19,453)
Adjustments to reconcile
 GAAP net loss to non-
 GAAP net loss:
Stock-based compensation     4,366      3,726     8,093    20,369    25,575
Stock-based compensation
 (merger-related)                -         70         -     1,234         -
Amortization of
 intangible assets           4,595      5,358     1,545    18,121     6,180
Merger-related expenses
 (cost of revenue)               -          -         -    19,966         -
Merger-related and other
 expenses (operating
 expense)                        -      1,334     1,805    11,693     3,942
Change in fair value of
 preferred stock warrants        -          -         -         -       173
Preferred stock dividends        -          -         -         -       900
                          --------  ---------  --------  --------  --------
Non-GAAP net income       $  3,747  $   3,554  $ 10,706  $ 18,833  $ 17,317
                          ========  =========  ========  ========  ========

Non-GAAP net income per
 common share
  Basic                   $   0.08  $    0.08  $   0.28  $   0.41  $   0.48
                          ========  =========  ========  ========  ========
  Diluted                 $   0.08  $    0.07  $   0.26  $   0.40  $   0.45
                          ========  =========  ========  ========  ========

Weighted average shares
 used to compute non-GAAP
  Net income per common
   share - Basic(1)         47,398     47,128    38,144    45,546    36,232
                          ========  =========  ========  ========  ========
  Net income per common
   share - Diluted(1)(2)    47,570     48,092    40,943    46,947    38,502
                          ========  =========  ========  ========  ========

(1) For the year ended December 31, 2010, includes outstanding common shares
and common shares resulting from the assumed conversion of preferred shares
as if conversion occurred at the beginning of the year ended December 31,
2010.
(2) Includes the dilutive effect of outstanding stock options, warrants and
restricted stock units for all periods presented.

                                Calix, Inc.
                          Condensed Balance Sheets
                               (In thousands)

                                                         December 31,
                                                   ------------------------
                                                       2011         2010
                                                   -----------  -----------
                                                   (unaudited)
ASSETS
Current Assets:
  Cash and cash equivalents                        $    38,938  $    66,304
  Marketable securities                                      -       32,020
  Restricted cash                                          754            -
  Accounts receivable, net                              47,943       43,377
  Inventory                                             44,604       24,557
  Deferred cost of revenue                               8,324        7,771
  Prepaid and other current assets                       4,429        3,245
                                                   -----------  -----------
Total current assets                                   144,992      177,274

  Property and equipment, net                           16,130       11,815
  Goodwill                                             116,175       65,576
  Intangible assets, net                                80,048          515
  Other assets                                           2,194        2,376
                                                   -----------  -----------
Total assets                                       $   359,539  $   257,556
                                                   ===========  ===========

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Accounts payable                                 $    14,250  $    10,268
  Accrued liabilities                                   36,214       25,987
  Deferred revenue                                      16,783       14,062
                                                   -----------  -----------
Total current liabilities                               67,247       50,317

  Long-term portion of deferred revenue                 13,347       10,985
  Other long term liabilities                            1,528          951
                                                   -----------  -----------
Total liabilities                                       82,122       62,253
                                                   -----------  -----------

Stockholders' equity:
  Common stock                                           1,195          968
  Additional paid-in capital                           740,309      605,939
  Other comprehensive income                                98           31
  Accumulated deficit                                 (464,185)    (411,635)
                                                   -----------  -----------
  Total stockholders' equity                           277,417      195,303
                                                   -----------  -----------
Total liabilities and stockholders' equity         $   359,539  $   257,556
                                                   ===========  ===========

              Condensed Consolidated Statements of Cash Flows
                               (in thousands)

                                                   Years Ended December 31,
                                                   ------------------------
                                                       2011         2010
                                                   -----------  -----------
                                                   (unaudited)
OPERATING ACTIVITIES
  Net loss                                         $   (52,550) $   (18,553)
  Adjustments to reconcile net loss to net cash
   used in operating activities:
    Amortization of premiums relating to
     available-for-sale securities                         244          967
    Depreciation and amortization                        7,954        5,015
    Loss on retirement of property and equipment         2,449           77
    Amortization of intangible assets                   18,121        6,180
    Revaluation of warrant liability                         -          173
    Stock-based compensation                            21,603       25,575
    Net gains on investments                                 -          (37)
  Changes in operating assets and liabilities:
    Change in restricted cash                              300          629
    Accounts receivable, net                            12,287        3,615
    Inventory                                            9,182       (6,001)
    Deferred cost of revenue                              (553)       8,697
    Prepaid and other assets                              (148)       1,237
    Accounts payable                                    (7,818)      (4,367)
    Accrued liabilities                                   (386)      (2,642)
    Deferred revenue                                     4,217      (11,430)
    Other long-term liabilities                           (313)          41
                                                   -----------  -----------
  Net cash provided by operating activities             14,589        9,176
                                                   -----------  -----------

INVESTING ACTIVITIES
    Purchase of property and equipment                  (7,355)      (5,614)
    Acquisition of Occam Networks, net of cash
     assumed                                           (60,809)           -
    Purchases of marketable securities                       -      (79,190)
    Sales of marketable securities                           -       29,214
    Maturities of marketable securities                 31,755       53,302
                                                   -----------  -----------
  Net cash used in investing activities                (36,409)      (2,288)
                                                   -----------  -----------

FINANCING ACTIVITIES
    Proceeds from exercise of stock options and
     other                                                 804          288
    Proceeds from employee stock purchase plan           3,938            -
    Taxes paid upon the vesting of restricted
     stock units                                       (10,376)     (10,004)
    Principal payment on loans                               -      (20,000)
    Proceeds from initial public offering of
     common stock, net of issuance costs                     -       57,311
                                                   -----------  -----------
  Net cash (used in) provided by financing
   activities                                           (5,634)      27,595
                                                   -----------  -----------

Effect of exchange rate changes on cash and cash
 equivalents                                                88            -

Net (decrease) increase in cash and cash
 equivalents                                       $   (27,366) $    34,483
Cash and cash equivalents at beginning of year          66,304       31,821
                                                   -----------  -----------
Cash and cash equivalents at end of year           $    38,938  $    66,304
                                                   ===========  ===========