Calix, Inc. filed a current report with the SEC on November 2, 2026, announcing the public dissemination of a stockholder letter containing financial results for the third quarter ended September 26, 2026.

Key Highlights

  • Reporting period: Third quarter ended September 26, 2026, as disclosed by Calix, Inc. (NYSE:CALX).
  • Stockholder letter: Calix issued a stockholder letter on November 2, 2026, containing Q3 2026 financial results, attached as Exhibit 99.2.
  • Non-GAAP measures included: The stockholder letter references non-GAAP gross margin, non-GAAP net income per diluted common share, and non-GAAP free cash flow, among others.
  • Exclusions from non-GAAP figures: According to the filing, non-GAAP measures exclude non-cash stock-based compensation, intangible asset amortization, and the impact from changes in income taxes.
  • GAAP reconciliation provided: A reconciliation of non-GAAP results to the most directly comparable U.S. GAAP results is contained in tabular form in Exhibit 99.2.
  • Signed by CFO: The report was signed by Cory Sindelar, Chief Financial Officer of Calix, Inc.

Calix Releases Q3 2026 Results via Stockholder Letter, Citing Non-GAAP Operating Metrics

Calix, Inc., a Delaware-incorporated company headquartered at 3155 Olsen Drive, Suite 450, San Jose, California 95117, provides cloud and software platforms aimed at broadband service providers. On November 2, 2026, the company disclosed its third-quarter financial results through a stockholder letter rather than a traditional earnings release alone, with the letter attached as Exhibit 99.2 to the current report filed with the SEC.

According to the filing, the stockholder letter includes several non-GAAP financial measures: non-GAAP gross margin, non-GAAP operating expenses, non-GAAP sales and marketing investments, non-GAAP research and development investments, non-GAAP general and administrative investments, non-GAAP effective income tax rate, non-GAAP net income or profitability, non-GAAP net income per diluted common share, and non-GAAP free cash flow. The filing states these measures are "provided to enhance the reader's understanding of the Company's operating performance" by excluding non-cash stock-based compensation, intangible asset amortization, and the impact from changes in income taxes, which the company "believes are not indicative of its core operating results."

The filing further notes that management uses these non-GAAP measures "to evaluate financial results and to establish operational goals," while cautioning that the presentation "is not meant to be a substitute for results presented in accordance with U.S. GAAP." The filing also states that the non-GAAP measures "may be calculated differently from, and therefore may not be comparable to, similarly titled measures used by other companies." The information disclosed under Item 2.02 is expressly stated as not deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934.

What Was Disclosed

Calix, Inc. reported its third-quarter 2026 financial results through a stockholder letter and accompanying press release filed November 2, 2026. The filing details multiple non-GAAP performance measures, notes their exclusions, and confirms a GAAP reconciliation is included in Exhibit 99.2.