---
schema_version: "secwatch.filing_event.v1"
accession: "0001406666-25-000015"
form_type: "8-K"
ticker: "CALX"
cik: "0001406666"
company_name: "CALIX, INC"
filed_at: "2025-04-21T23:59:59+00:00"
generated_at: "2026-05-23T10:05:05.295838+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Calix Q1 record gross margin 56.2%, revenue $220.2M, non-GAAP EPS $0.19

## Summary
- Q1 revenue $220.2M (+6.9% QoQ, -2.7% YoY); GAAP net loss $4.8M ($0.07 loss per share); non-GAAP net income $13.1M ($0.19 per share).
- Record GAAP gross margin 55.7% (+150 bps YoY); non-GAAP gross margin 56.2% (also record).
- RPOs $340.4M (+39% YoY); added 16 new BSPs; cash & investments $282.3M after repurchasing 1.2M shares.
- Board authorized additional $100M buyback; Q2 guidance: revenue $221M–$227M, non-GAAP EPS $0.18–$0.24.
- Sequential growth driven by BXP customers pulling forward XGS-PON and WiFi-7 demand; Unlimited Subscriber revenue up 15% QoQ.

## SEC filing metadata
- accession: 0001406666-25-000015
- form_type: 8-K
- ticker: CALX
- cik: 0001406666
- company_name: CALIX, INC
- filed_at: 2025-04-21T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1406666/000140666625000015/0001406666-25-000015-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1406666/000140666625000015/calx-20250421.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001406666-25-000015
- JSON: https://secwatch.observer/filing/0001406666-25-000015.json
- Plain text: https://secwatch.observer/filing/0001406666-25-000015.txt

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