---
schema_version: "secwatch.filing_event.v1"
accession: "0001406666-26-000017"
form_type: "8-K"
ticker: "CALX"
cik: "0001406666"
company_name: "CALIX, INC"
filed_at: "2026-04-21T23:59:59+00:00"
generated_at: "2026-05-15T05:05:14.693497+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Calix Q1 record revenue $280M (+27% YoY); guides Q2 revenue $287-293M

## Summary
- Record Q1 revenue $280M, up 27% YoY; GAAP EPS $0.16, non-GAAP EPS $0.40.
- Launched AI-native Calix One platform; all customers migrated, expects multi-year sustained growth.
- Q2 guidance: revenue $287-293M (midpoint +4% QoQ); non-GAAP EPS $0.35-0.45.
- Returned $171M to shareholders via buybacks in Q1; remaining authorization $63M.
- RPOs $376.3M, current RPOs record $156.7M (+11% YoY); 14 new platform customers added.

## SEC filing metadata
- accession: 0001406666-26-000017
- form_type: 8-K
- ticker: CALX
- cik: 0001406666
- company_name: CALIX, INC
- filed_at: 2026-04-21T23:59:59+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/1406666/000140666626000017/0001406666-26-000017-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1406666/000140666626000017/calx-20260421.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001406666-26-000017
- JSON: https://secwatch.observer/filing/0001406666-26-000017.json
- Plain text: https://secwatch.observer/filing/0001406666-26-000017.txt

## Key facts
- Earnings Releases
  CALIX, INC reported the first quarter ended March 28, 2026 results: revenue $280 million.
  - Period: the first quarter ended March 28, 2026
  - Revenue: $280 million
  - Result: reported results
  source text: Calix delivered record revenue of $280 million in the first quarter of 2026
  evidence_url: https://www.sec.gov/Archives/edgar/data/1406666/000140666626000017/0001406666-26-000017-index.htm

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