---
schema_version: "secwatch.filing_event.v1"
accession: "0001406666-26-000004"
form_type: "8-K"
ticker: "CALX"
cik: "0001406666"
company_name: "CALIX, INC"
filed_at: "2026-01-28T23:59:59+00:00"
generated_at: "2026-05-16T06:56:00.755149+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Calix reports record Q4 revenue $272.4M (+32% YoY); non-GAAP EPS $0.39 beats guidance

## Summary
- Record Q4 revenue $272.4M (+32% YoY); annual revenue reaches $1.0B (+20% YoY).
- Non-GAAP gross margin record 58.0%; eighth consecutive quarter of margin improvement.
- Non-GAAP net income $27.3M ($0.39 diluted EPS), above guidance range of $0.35-$0.41.
- Record cash and investments $388.1M; record quarterly operating cash flow $46.0M.
- Q1 2026 guidance: revenue $275M-$281M, non-GAAP EPS $0.34-$0.40, above Q4 actual.

## SEC filing metadata
- accession: 0001406666-26-000004
- form_type: 8-K
- ticker: CALX
- cik: 0001406666
- company_name: CALIX, INC
- filed_at: 2026-01-28T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1406666/000140666626000004/0001406666-26-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1406666/000140666626000004/calx-20260128.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001406666-26-000004
- JSON: https://secwatch.observer/filing/0001406666-26-000004.json
- Plain text: https://secwatch.observer/filing/0001406666-26-000004.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.