CALX on NYSE

Calix

Logo: Calix, Public domain, via Wikimedia Commons4

Telecommunications company

Calix, Inc. is a telecommunications company that specializes in providing software platforms, systems, and services to support the delivery of broadband services.3 From Wikipedia, CC BY-SA 4.0

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Last updated Oct 16, 2026.

Overview

1999Founded1

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  • TickerCALX on NYSE1
  • Industrytelecommunications1
  • HeadquartersPetaluma1
  • Websitewww.calix.com
  • Legal formDelaware corporation1
  • Business address3155 Olsen Drive, Suite 450, San Jose, Ca 951175
  • Filer categoryLarge accelerated filer5

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Calix, Inc. is a telecommunications company that specializes in providing software platforms, systems, and services to support the delivery of broadband services. The company was founded in 1999 and is headquartered in San Jose, California.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

56.8%Gross margin7
2.1%Operating margin7
1.8%Net margin7
20.3%Revenue growth, 20257
2.1%Return on equity7
$115.5MFree cash flow7

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Appliance brought in 83% of the revenue Calix broke down this way in fiscal 2025.

  1. Appliance$825.6M783%up 19% from 2024
  2. Software And Service$174.4M717%up 27% from 2024
Products and services by year
Products and services202320242025
Appliance$931.5M$694.1M$825.6M
Software And Service$108.1M$137.4M$174.4M

Regions

United States brought in 93% of the revenue Calix broke down this way in fiscal 2025.

  1. United States$934.8M793%up 22% from 2024
  2. Europe$33.4M73%down 3% from 2024
  3. Americas Ex U.S.$25.3M73%down 1% from 2024
  4. Rest Of World$6.5M71%down 8% from 2024
Regions by year
Regions202320242025
United States$944.2M$764.6M$934.8M
Europe$54.3M$34.3M$33.4M
Americas Ex U.S.$32.7M$25.6M$25.3M
Rest Of World$8.4M$7.0M$6.5M

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Cost of revenue43¢$431.7M
  • Research and development19¢$190.4M
  • Other costs34¢$343.8M
  • Income tax2¢$16.3M
  • Profit2¢$17.9M

Out of $1.0B in revenue.7

Where each dollar of operating cash went, fiscal 2025

  • Capital spending14¢$19.4M
  • Share buybacks69¢$93.6M
  • Kept or used elsewhere16¢$21.9M

Out of $135.0M of cash from operations.7

Financial statements

Revenue8910117$1.0B in 2025+136% since 2019
0$500.0M$1.0B$1.5B2019: $424.3M$424.3M20192020: $541.2M$541.2M2020+28%2021: $679.4M$679.4M2021+26%2022: $867.8M$867.8M2022+28%2023: $1.0B$1.0B2023+20%2024: $831.5M$831.5M2024−20%2025: $1.0B$1.0B2025+20%
Gross profit8910117$568.3M in 2025+202% since 2019
0$200.0M$400.0M$600.0M2019: $187.9M$187.9M20192020: $267.0M$267.0M2020+42%2021: $356.6M$356.6M2021+34%2022: $435.4M$435.4M2022+22%2023: $518.3M$518.3M2023+19%2024: $453.6M$453.6M2024−12%2025: $568.3M$568.3M2025+25%
Operating income8910117$21.0M in 2025
-$50.0M0$50.0M$100.0M2019: -$15.4M-$15.4M20192020: $36.8M$36.8M20202021: $73.9M$73.9M2021+101%2022: $52.6M$52.6M2022−29%2023: $25.6M$25.6M2023−51%2024: -$43.0M-$43.0M20242025: $21.0M$21.0M2025
Net income8910117$17.9M in 2025
-$100.0M0$100.0M$200.0M$300.0M2019: -$17.7M-$17.7M20192020: $33.5M$33.5M20202021: $238.4M$238.4M2021+612%2022: $41.0M$41.0M2022−83%2023: $29.3M$29.3M2023−28%2024: -$29.7M-$29.7M20242025: $17.9M$17.9M2025

Every line of the income statement in the latest annual report, as filed.7

Period ending2025-12-312024-12-312023-12-31
Total revenue$1.0B$831.5M$1.0B
Total cost of revenue$431.7M$377.9M$521.3M
Gross profit$568.3M$453.6M$518.3M
Sales and marketing$248.6M$217.9M$214.6M
Research and development$190.4M$179.9M$177.8M
General and administrative$108.3M$98.9M$100.4M
Total operating expenses$547.3M$496.6M$492.7M
Operating income (loss)$21.0M-$43.0M$25.6M
Interest income, net$13.4M$12.3M$9.7M
Other expense, net-$256.0K-$955.0K-$532.0K
Total interest income and other expense, net$13.2M$11.4M$9.2M
Income (loss) before income taxes$34.2M-$31.6M$34.8M
Income tax expense (benefit)$16.3M-$1.9M$5.4M
Net income (loss)$17.9M-$29.7M$29.3M
Basic (in dollars per share)$0.27-$0.45$0.44
Diluted (in dollars per share)$0.26-$0.45$0.42
Basic (in shares)66.0M shares65.9M shares66.0M shares
Diluted (in shares)69.3M shares65.9M shares69.3M shares
Unrealized gain on available-for-sale marketable securities, net$343.0K$187.0K$1.7M
Foreign currency translation adjustments, net-$139.0K-$140.0K$113.0K
Total other comprehensive income, net of tax$204.0K$47.0K$1.8M
Comprehensive income (loss)$18.1M-$29.7M$31.1M

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How it started

Acquisitions history

In 2006, Calix purchased Optical Solutions, Inc., based in Minneapolis, MN.

In 2010, Calix announced acquisition of one-time rival Occam Networks, Inc., based in Santa Barbara, California. The acquisition was completed in February 2011.

In November 2012, Calix completed acquisition of Ericsson’s fiber access assets.

In January 2018, Verizon Communications selected Calix's AXOS E9-2 system for the first large-scale deployment of NG-PON2 technology, beginning in Tampa, Florida.

From Wikipedia’s article on Calix, shared under CC BY-SA 4.0.3

Products and brands

  • networking hardware

Listed on Wikidata.1

Acquisitions

In 2006, Calix purchased Optical Solutions, Inc., based in Minneapolis, MN.

In 2010, Calix announced acquisition of one-time rival Occam Networks, Inc., based in Santa Barbara, California. The acquisition was completed in February 2011.

In November 2012, Calix completed acquisition of Ericsson’s fiber access assets.

In January 2018, Verizon Communications selected Calix's AXOS E9-2 system for the first large-scale deployment of NG-PON2 technology, beginning in Tampa, Florida.

From Wikipedia’s article on Calix, Inc., shared under CC BY-SA 4.0.6

Former names

  • CALIX NETWORKS INCJul 11, 2007 to Mar 19, 20105

Timeline

  1. 1999Founded Founded1

Recent filings

  1. Oct 8, 20268-K
  2. Sep 29, 20264
  3. Jul 30, 2026SCHEDULE 13G/A
  4. Jul 28, 20264
  5. Jul 27, 2026144
  6. Jul 21, 202610-Q
  7. Jul 21, 2026S-8
  8. Jul 20, 20268-K
  9. Jun 30, 20264
  10. May 29, 2026SD
  11. May 18, 2026SCHEDULE 13G
  12. May 18, 20264
  13. May 18, 20264
  14. May 18, 20264
  15. May 18, 20264

Every filing from the last three years, summarized. The full record is on SEC EDGAR.2

Sources

The numbers on this page point here. Each one links to the record it came from.

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