---
schema_version: "secwatch.filing_event.v1"
accession: "0001406666-21-000077"
form_type: "8-K"
ticker: "CALX"
cik: "0001406666"
company_name: "CALIX, INC"
filed_at: "2021-07-26T23:59:59+00:00"
generated_at: "2026-06-30T02:32:11.121574+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Calix Q2 revenue $168.7M (+42% YoY) beats guidance; EPS $0.38 non-GAAP; CEO becomes chairman

## Summary
- Revenue $168.7M, +42% YoY, above guidance of $157-163M; non-GAAP EPS $0.38 vs guidance $0.24-0.28.
- GAAP net income $20.5M (vs loss of $4.2M YoY), record Q2; gross margin 53.1% GAAP, 52.8% non-GAAP.
- Free cash flow $21.8M, positive for 4th consecutive quarter; cash and securities $175.8M, up $25.8M sequentially.
- EXOS platform revenue up >275% YoY, AXOS up >75% YoY; added 43 new BSP customers in Q2.
- CEO Carl Russo appointed Chairman; Don Listwin becomes lead independent director.

## SEC filing metadata
- accession: 0001406666-21-000077
- form_type: 8-K
- ticker: CALX
- cik: 0001406666
- company_name: CALIX, INC
- filed_at: 2021-07-26T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1406666/000140666621000077/0001406666-21-000077-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1406666/000140666621000077/calx-20210726.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001406666-21-000077
- JSON: https://secwatch.observer/filing/0001406666-21-000077.json
- Plain text: https://secwatch.observer/filing/0001406666-21-000077.txt

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