8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 8, 2014

CALIX, INC.

(Exact name of Registrant as specified in its charter)

Delaware	001-34674	68-0438710
(State or other jurisdiction of incorporation)	(Commission File No.)	(I.R.S. Employer Identification No.)
1035 N. McDowell Boulevard, Petaluma, California		94954
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (707) 766-3000

Not Applicable

(Former name or former address if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02 Results of Operations and Financial Condition.

On January 8, 2014, Calix, Inc. (the “Company”) issued a press release setting the announcement date for release of the Company’s financial results for the fourth quarter and the 2013 fiscal year ended December 31, 2013, and providing preliminary estimates of revenue and non-GAAP earnings per share for the fourth quarter 2013.

The above description is qualified by reference to the Company’s press release, dated January 8, 2014, a copy of which is attached as Exhibit 99.1 and incorporated herein by reference. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not incorporated by reference into any filing of the Company, whether made before or after the date of this filing, regardless of any general incorporation language in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.	Description
99.1	Press release dated January 8, 2014 setting earnings announcement date, and providing preliminary estimates.

SIGNATURES

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

January 14, 2014	CALIX, INC.
	By:	/s/ Michael Ashby
		Michael Ashby
		Chief Financial Officer

INDEX TO EXHIBITS

Exhibit No.	Description
99.1	Press release dated January 8, 2014 setting earnings announcement date, and providing preliminary estimates.

EX-99.1

Exhibit 99.1

Calix Sets Date for the 4th Quarter 2013 Financial Results and Announces Preliminary Estimates

Calix to Participate at the 16th Annual Needham Growth Conference in NYC on January 15, 2014

PETALUMA, CA – January 8, 2014 – Calix, Inc. (NYSE: CALX) today announced that the company will report fourth quarter and 2013 fiscal year results on February 11 after the market closes. The company also announced that preliminary estimates for revenue and non-GAAP earnings per share would be below previous guidance for the fourth quarter of 2013.

Preliminary estimates for the fourth quarter are for revenue to be in the range of $93.5 to $94.5 million and non-GAAP earnings per share of 2 to 4 cents per share. On October 29, 2013, the company provided guidance for the fourth quarter ending December 31, 2013 for revenue between $97 and $103 million and non-GAAP earnings to range between per share of 3 to 8 cents per share. The revised estimates for the fourth quarter reflect a greater than anticipated decline in traditional year-end "budget flush" customer spending patterns than the company historically has experienced. The company reported $91.4 million and non-GAAP earnings $0.06 in the fourth quarter of 2012.

Calix will provide further commentary on the company's fourth quarter results during its fourth quarter financial results conference call which is scheduled for 1:30 p.m. Pacific Time/4:30 p.m. Eastern Time on February 11, 2014. 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/. The conference call and webcast will include forward-looking information. A replay of the conference call will also be available at http://investor-relations.calix.com/ following the completion of the call.

Calix also announced that its management will participate and webcast its presentation at the 16th Annual Needham Growth Conference in New York City on January 15, 2014 at 8:00 a.m. Eastern Time/5:00 a.m. Pacific Time. The Needham conference presentation will be made available to interested parties on the investor relations section of the Calix website at http://investor-relations.calix.com/.

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 transform their networks and become the broadband provider of choice to their subscribers. For more information, visit the Calix website atwww.calix.com.

This press release contain forward-looking statements, including preliminary estimates for the fourth quarter of 2013 for revenue and non-GAAP earnings per share, that are based upon management's current expectations and are inherently uncertain. The revenue and non-GAAP earnings per share estimates referenced in this press release are preliminary and subject to the completion of the company's customary quarterly closing and review procedures. Forward-looking statements are based upon information available to us as of the date of this release, and we assume no obligation to revise or update any such forward-looking statement to reflect any event or circumstance after the date of this release, except as required by law. Actual results and the timing of events could differ materially from current expectations based on risks and uncertainties affecting the Company's business. The reader is cautioned not to unduly rely on the forward-looking statements contained in this press release. Additional information on potential factors that could affect Calix's results and other risks and uncertainties are detailed in its reports on Form 10-Q for the third 2013 fiscal quarter and Annual Report on Form 10-K for the fiscal year 2012, filed with the SEC and available at http://www.sec.gov.

Investor Inquiries:

David H. Allen

408-474-0080

David.Allen@Calix.com