Release Details

Calix Reports First Quarter 2012 Financial Results

May 1, 2012

PETALUMA, CA, May 01, 2012 (MARKETWIRE via COMTEX) --Calix, Inc. (NYSE: CALX) today announced unaudited financial results for the first quarter ended March 31, 2012. Revenue for the first quarter of 2012 was $78.6 million, an increase of 10% compared to $71.5 million for the first quarter of 2011.

"Solid operational performance together with strong bookings and broadband stimulus shipments in the quarter were encouraging," said Carl Russo, president and CEO of Calix. "Calix customers continue to transform their networks to meet the increasing demands of a broadband world and the Calix Unified Access portfolio is ideally suited to address these needs."

Non-GAAP net income for the first quarter of 2012 was $0.6 million, or $0.01 per fully diluted share. Non-GAAP net income was $3.8 million, or $0.09 per fully diluted share, for the first quarter of 2011. A reconciliation of GAAP and non-GAAP results is included as part of this release.

GAAP net loss for the first quarter of 2012 was $7.5 million, or $(0.16) per basic and diluted share, compared to a GAAP net loss of $22.8 million, or $(0.55) per basic and diluted share for the first quarter of 2011. A reconciliation of our first quarter 2012 operating results from non-GAAP to GAAP is provided below:

                                                    Amortization
                                     Stock-Based   of Intangible
                          Non-GAAP   Compensation      Assets        GAAP
                         ---------  -------------  -------------  ---------
Revenue                  $  78,565              -              -  $  78,565
Cost of revenue             43,108            363          1,275     44,746
                         ---------  -------------  -------------  ---------
Gross profit                35,457           (363)        (1,275)    33,819
Gross margin                  45.1%          -0.5%          -1.6%      43.0%
Operating expenses          34,684          3,952          2,552     41,188
                         ---------  -------------  -------------  ---------
Operating income (loss)        773         (4,315)        (3,827)    (7,369)
Other income (expense),
 net                           (57)             -              -        (57)
                         ---------  -------------  -------------  ---------
Income (loss) before
 taxes                         716         (4,315)        (3,827)    (7,426)
Provision for income
 taxes                          95              -              -         95
                         ---------  -------------  -------------  ---------
Net income (loss)        $     621  $      (4,315) $      (3,827) $  (7,521)
                         =========  =============  =============  =========

Weighted average basic
 and diluted shares used
 to compute GAAP net
 loss per common share                                               47,850
                                                                  =========

Weighted average diluted
 shares used to compute
 non-GAAP net income per
 common share               48,039         48,039         48,039
                         =========  =============  =============

GAAP net loss per common
 share                                                            $   (0.16)
                                                                  =========

Non-GAAP net income per
 share                   $    0.01  $       (0.09) $       (0.08)
                         =========  =============  =============

Conference Call

In conjunction with this announcement, Calix will host a conference call at 1:30 p.m. Pacific Time (4:30 p.m. Eastern Time) today to discuss its first quarter 2012 financial results. A live audio webcast and replay of the call will be available in the Investor Relations section of the Calix web site at http://investor-relations.calix.com.

Live call access information: Dial-in number: (877) 407-4019 (U.S.) or (201) 689-8337 (outside the U.S.)

The conference call and webcast will include forward-looking information.

About Calix

Calix (NYSE: CALX) is a global leader in access innovation. Its Unified Access portfolio of broadband communications access systems and software enables communications service providers worldwide to be 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 income per 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, 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 perspectives 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 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 Consolidated Statements of Operations
                   (In thousands, except per share data)

                                                      Three Months Ended
                                                   ------------------------
                                                    March 31,    March 26,
                                                       2012         2011
                                                   -----------  -----------
                                                          (unaudited)
Revenue                                            $    78,565  $    71,470
Cost of revenue:
    Products and services(1)                            43,471       39,308
    Merger-related expenses                                  -       10,257
    Amortization of intangible assets                    1,275        1,516
                                                   -----------  -----------
Total cost of revenue                                   44,746       51,081
                                                   -----------  -----------
    Gross profit                                        33,819       20,389

Operating expenses:
    Research and development(1)                         16,966       15,039
    Sales and marketing(1)                              14,890       12,066
    General and administrative(1)                        6,780        9,308
    Merger-related and other expenses(1)                     -        6,041
    Amortization of intangible assets                    2,552          669
                                                   -----------  -----------
Total operating expenses                                41,188       43,123
                                                   -----------  -----------
Loss from operations                                    (7,369)     (22,734)

Other income (expense):
    Interest income                                          7           43
    Interest expense                                       (42)         (46)
    Other income                                           (22)           5
                                                   -----------  -----------
Loss before provision for income taxes                  (7,426)     (22,732)
Provision for income taxes                                  95           24
                                                   -----------  -----------
Net loss                                                (7,521)     (22,756)
                                                   ===========  ===========

Net loss per common share:
    Basic and diluted                              $     (0.16) $     (0.55)
                                                   ===========  ===========

Weighted average number of shares used to compute
 net loss per common share:

      Basic and diluted                                 47,850       41,177
                                                   ===========  ===========


(1) Includes stock-based compensation as follows:      Three Months Ended
                                                   ------------------------
                                                     March 31,    March 26,
                                                       2012         2011
                                                   -----------  -----------
                                                          (unaudited)
    Cost of revenue                                $       363  $       504
    Research and development                             1,021        1,642
    Sales and marketing                                  1,239        1,298
    General and administrative                           1,692        4,583
    Merger-related                                           -           90
                                                   -----------  -----------
                                                   $     4,315  $     8,117
                                                   ===========  ===========


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

                                                      Three Months Ended
                                                   ------------------------
                                                    March 31,    March 26,
                                                       2012         2011
                                                   -----------  -----------

GAAP net loss                                      $    (7,521) $   (22,756)
Adjustments to reconcile GAAP net loss to
non-GAAP net income:
Stock-based compensation                                 4,315        8,117
Amortization of intangible assets                        3,827        2,185
Merger-related and other expenses                            -       16,208
                                                   -----------  -----------
Non-GAAP net income                                $       621  $     3,754
                                                   ===========  ===========

Non-GAAP net income per common share
  Basic                                            $      0.01  $      0.09
                                                   ===========  ===========
  Diluted                                          $      0.01  $      0.09
                                                   ===========  ===========

Weighted average shares used to compute non-GAAP
 net income per common share - Basic                    47,850       41,177
                                                   ===========  ===========

Weighted average shares used to compute non-GAAP
 net income per common share - Diluted (1)              48,039       43,728
                                                   ===========  ===========

(1) Includes the dilutive effect of outstanding stock options, warrants and
 restricted stock units.


                                Calix, Inc.
                   Condensed Consolidated Balance Sheets
                               (In thousands)

                                                 March 31,     December 31,
                                                    2012           2011
                                               -------------  -------------
ASSETS                                          (unaudited)
Current Assets:
  Cash and cash equivalents                    $      49,562  $      38,938
  Restricted cash                                          -            754
  Accounts receivable, net                            48,140         47,943
  Inventory                                           37,157         44,604
  Deferred cost of goods sold                          9,400          8,324
  Prepaid and other current assets                     3,950          4,429
                                               -------------  -------------
Total current assets                                 148,209        144,992

Property and equipment, net                           17,182         16,130
Goodwill                                             116,175        116,175
Intangible assets, net                                76,221         80,048
Other assets                                           2,050          2,194
                                               -------------  -------------
Total assets                                   $     359,837  $     359,539
                                               =============  =============

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable                             $      14,133  $      14,250
  Accrued liabilities                                 35,921         36,214
  Deferred revenue                                    19,685         16,783
                                               -------------  -------------
Total current liabilities                             69,739         67,247

Long-term portion of deferred revenue                 14,570         13,347
Other long term liabilities                            1,198          1,528
                                               -------------  -------------
Total liabilities                                     85,507         82,122
                                               -------------  -------------

Stockholders' equity:
  Common stock                                         1,196          1,195
  Additional paid-in capital                         744,695        740,309
  Other comprehensive income                             145             98
  Accumulated deficit                               (471,706)      (464,185)
                                               -------------  -------------
Total stockholders' equity                           274,330        277,417

                                               -------------  -------------
Total liabilities and stockholders' equity     $     359,837  $     359,539
                                               =============  =============


                                Calix, Inc.
              Condensed Consolidated Statements of Cash Flows
                               (in thousands)

                                                    Three Months Ended
                                               ----------------------------
                                                 March 31,      March 26,
                                                    2012           2011
                                               -------------  -------------
                                                        (unaudited)
Operating activities
Net loss                                       $      (7,521) $     (22,756)
Adjustments to reconcile net loss to net cash
 provided by operating activities:
  Amortization of premiums relating to
   available-for-sale securities                           -            108
  Depreciation and amortization                        1,960          1,617
  Amortization of intangible assets                    3,827          2,185
  Stock-based compensation                             4,315          8,117
  Changes in operating assets and liabilities:
    Change in restricted cash                            754              -
    Accounts receivable, net                            (197)         4,177
    Inventory                                          7,447          4,406
    Deferred cost of revenue                          (1,076)        (2,083)
    Prepaids and other assets                            623          1,159
    Accounts payable                                    (117)        (6,068)
    Accrued liabilities                                 (293)         8,068
    Deferred revenue                                   4,125          3,772
    Other long-term liabilities                         (330)            (8)
                                               -------------  -------------
  Net cash provided by operating activities           13,517          2,694
                                               -------------  -------------

Investing activities
  Acquisition of property and equipment               (3,012)        (1,722)
  Maturities of marketable securities                      -         22,905
  Acquisition of Occam Networks, net of cash
   assumed                                                 -        (60,788)
                                               -------------  -------------
  Net cash used in investing activities               (3,012)       (39,605)
                                               -------------  -------------

Financing activities
  Proceeds from exercise of stock options and
   other                                                  72            154
                                               -------------  -------------
  Net cash provided by financing activities               72            154
                                               -------------  -------------

Effect of exchange rate changes on cash and
 cash equivalents                                         47              -

Net increase (decrease) in cash and cash
 equivalents                                          10,624        (36,757)
Cash and cash equivalents at beginning of year        38,938         66,304
                                               -------------  -------------
Cash and cash equivalents at end of year       $      49,562  $      29,547
                                               =============  =============