Calix (CALX) Earnings: Q3 2026 Results and Next Report Date

The quarter ended September 26, 2026 and Calix published the results on November 2, 2026. Revenue and diluted EPS are shown against Q3 2025, the same quarter a year earlier, which takes seasonal swings out of the comparison. Calix reports EPS two ways: GAAP, under the accounting rules every US filer follows, and non-GAAP, which leaves out items the company considers outside its operating results. The release reconciles the two, and when they diverge, the reconciliation says why.

• Calix publishes its results in a letter to stockholders (Exhibit 99.2 to the 8-K); the press release only points to it. Figures here are from the letter.
• Calix's non-GAAP results exclude only stock-based compensation, net of tax. The Q3 2026 letter reconciles only the current quarter's non-GAAP EPS, so no year-ago figure is shown.

Source: Calix Q3 2026 letter to stockholders, November 2, 2026. Also in the Form 10-Q for the quarter ended September 26, 2026. Figures as reported; checked against the release on November 10, 2026.

How Calix splits revenue in its own release, under its own labels, for Q3 2026 against Q3 2025. Indented lines are parts of the line above them.

• Calix's Appliance revenue was $250 million in Q3 2026, up 13% from $222 million in Q3 2025, 83% of total revenue.
• Calix's Software and service revenue was $51.9 million in Q3 2026, up 19% from $43.5 million in Q3 2025, 17% of total revenue.

Segment lines are the figures writers cite most often, because they show where the growth in a quarter came from. Companies redraw their segments from time to time and restate the prior year to match, so a year-ago figure here can differ from the one printed a year ago. When that has happened, the note above says so.

From the earnings release

Calix's guidance table also gives Q4 2026 net income per diluted share of $0.41 to $0.49 on a non-GAAP basis and $0.17 to $0.25 on a GAAP basis, based on 63.4 million weighted-average diluted shares.

In its Q3 2026 release, Calix said:

“Our revenue guidance for the fourth quarter of 2026 is for revenue to be between $311 million and $317 million, up 4% (at the midpoint) from the prior quarter and resulting in full-year 2026 revenue growth of approximately 19%, at the higher end of our 15% to 20% growth expectations provided at the beginning of the year.”

“Non-GAAP gross margin guidance of 52.25% to 54.75% for the fourth quarter represents the same level at the midpoint as the prior quarter.”

“We continue to expect our non-GAAP effective income tax rate for 2026 will be in a range of 23% to 25%.”

Source: Calix Q3 2026 letter to stockholders, Nov 2, 2026.

This is the company's own guidance as of Nov 2, 2026, quoted as given. Walnut does not make forecasts of its own. Analyst estimates for the coming quarters are on the CALX forecast page.

Revenue and diluted EPS for the last 5 quarters. Each date links to that quarter's release.

GAAP revenue and diluted EPS, each as first reported in that quarter's letter to stockholders.

Calix's next report is expected around January 25, 2027, a date estimated from its reporting history that the company has not yet confirmed. This page will show Q3 2026 until those results are out and have been checked against the release.

Each quarter keeps its own page with the figures as reported, so a link to one stays pointed at the same numbers after the next report.

• Q3 2026 (this page), reported Nov 2, 2026

Calix sells broadband equipment and software to service providers. Appliance revenue, covering its Access Edge and Experience Edge appliances and related optics, was a record $249.8 million in Q3 2026, up 13%. Software and service revenue, which includes the Calix One SaaS platform, SmartLife managed services and support, was a record $51.9 million, up 19%. Total revenue was $301.7 million, up 14%. (Calix Q3 2026 letter to stockholders, Nov 2, 2026)

Calix attributed software and service growth to strong subscriber additions by its customers and the upsell of SmartLife managed services. Remaining performance obligations reached $395.7 million, up 12%, after Calix stopped counting contracts of one year or less; without that change RPO would have grown 13%. (Calix Q3 2026 letter to stockholders, Nov 2, 2026)

Calix's revenue is almost all domestic and is becoming more concentrated. U.S. revenue was 95% of the total in Q3 2026, up from 94% a year earlier, and international revenue fell 14%. One customer represented 11% of revenue in the quarter; in its 10-K, Calix said no customer represented more than 10% of revenue in 2025, 2024 or 2023. (Calix Q3 2026 letter to stockholders, Nov 2, 2026; Calix Form 10-K, 2025, Feb 20, 2026)

Calix added 14 new service provider customers in Q3 2026. To offset a rapid rise in memory costs, which it tied to demand from AI data center construction, it has put memory surcharges in place with customers, and its Q4 2026 revenue outlook includes their expected impact. (Calix Q3 2026 letter to stockholders, Nov 2, 2026)

Calix's GAAP diluted EPS fell to $0.16 in Q3 2026 from $0.22, and GAAP net income to $10.2 million from $15.7 million. GAAP gross margin fell 400 basis points to 53.3% and appliance gross margin to 50.6%, which Calix tied mainly to higher memory costs. Income taxes rose to $7.8 million from $4.7 million. (Calix Q3 2026 letter to stockholders, Nov 2, 2026)

Non-GAAP EPS was $0.44, near the top of Calix's $0.37 to $0.45 guidance. Calix's only non-GAAP adjustment is stock-based compensation, net of tax; it was $21.0 million in Q3 2026, against $16.7 million in Q2, and non-GAAP net income was $28.5 million. (Calix Q3 2026 letter to stockholders, Nov 2, 2026)

Calix repurchased 1.4 million shares for $50.0 million in the quarter, and 6.3 million for $290.2 million so far in 2026. Diluted weighted average shares fell to 64,447 thousand from 69,789 thousand. In October 2026 the board added $100 million to the authorization, leaving $144 million. (Calix Q3 2026 letter to stockholders, Nov 2, 2026)

Diluted EPS divides net income by the weighted average number of shares outstanding in the quarter, plus the shares that options and other equity awards could add. Buybacks shrink that count and lift EPS for the same profit; share issuance and stock awards enlarge it.

Calix guides one quarter ahead in its letter to stockholders. For Q4 2026 it guided revenue of $311 million to $317 million, which at the midpoint would bring full-year 2026 growth to about 19%, non-GAAP gross margin of 52.25% to 54.75%, and non-GAAP net income per diluted share of $0.41 to $0.49 ($0.17 to $0.25 GAAP). Over the long term it targets 15% annual growth and an operating margin of 20%. (Calix Q3 2026 letter to stockholders, Nov 2, 2026)

A consensus figure is the average of the models published by the analysts who cover Calix, collected by a data provider and revised up to the day of the report. A quarter that lands above it says how expectations were set as much as how the business did, and the share price on the day also reflects the guidance and the lines no consensus covers.

The consensus figures on this page are Yahoo Finance's, as pulled on the date shown. Each comes with the number of analysts behind it; the smaller that number, the more one revised estimate can move the average.

The figures below are the ones Calix's own release and filings put weight on for Q3 2026, with the latest reported value for each.

What the quarter means for a holding is a separate question from what it reported. The case for and against owning CALX is on is CALX a buy or a sell?, what analysts expect next is on the CALX forecast, and what the company does is on the Calix (CALX) stock page.

Every number on this page can be traced to a document Calix published. Checking one takes a couple of minutes, and it is worth doing before you quote a figure anywhere.

• The results release is the document linked in the source line above. Companies publish it on their investor relations site at the moment results go out, and it carries the headline tables: revenue, operating income, net income and EPS for the quarter and the year-ago quarter.
• The same release is filed with the SEC as Exhibit 99.1 to a Form 8-K under Item 2.02, usually on the day of the report. The SEC copy does not change after the fact, which makes it the safer thing to link when you cite a number.
• The quarterly report (Form 10-Q) follows within a few weeks and carries the full financial statements, the segment note and management's discussion of what changed. The fourth quarter is covered by the annual report (Form 10-K) instead.
• Restated comparisons are flagged in the notes on this page. When a company redraws its segments or changes how it adjusts EPS, it restates the year-ago column, so the year-ago figure in a new release can differ from the one printed a year ago. This page always uses the comparison in the newer release, because that is the like-for-like one.

A walk-through of every line in a release, with what each one tells you, is in how to read an earnings report.