---
schema_version: "secwatch.filing_event.v1"
accession: "0001406666-25-000034"
form_type: "8-K"
ticker: "CALX"
cik: "0001406666"
company_name: "CALIX, INC"
filed_at: "2025-07-21T23:59:59+00:00"
generated_at: "2026-05-18T04:58:50.905811+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Calix Q2 revenue $241.9M (+22% YoY); non-GAAP EPS $0.33 beats guidance; record gross margin 56.8%

## Summary
- Revenue $241.9M (+10% q/q, +22% y/y); non-GAAP EPS $0.33 vs guidance $0.18–$0.24.
- GAAP gross margin record 56.3%; non-GAAP gross margin 56.8% (record), up 60 bps q/q.
- RPO $346.6M (+30% y/y); added 19 platform, 22 Calix Cloud, 26 managed services customers.
- Record free cash flow $36M; cash & investments $299M; repurchased 1M shares for $33.6M.
- Q3 guidance: revenue $243M–$249M (midpoint +2% q/q), non-GAAP EPS $0.31–$0.37.

## SEC filing metadata
- accession: 0001406666-25-000034
- form_type: 8-K
- ticker: CALX
- cik: 0001406666
- company_name: CALIX, INC
- filed_at: 2025-07-21T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1406666/000140666625000034/0001406666-25-000034-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1406666/000140666625000034/calx-20250721.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001406666-25-000034
- JSON: https://secwatch.observer/filing/0001406666-25-000034.json
- Plain text: https://secwatch.observer/filing/0001406666-25-000034.txt

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