---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-040614"
form_type: "8-K"
ticker: "CIEN"
cik: "0000936395"
company_name: "CIENA CORP"
filed_at: "2026-06-04T11:05:06+00:00"
generated_at: "2026-06-04T11:10:20.896504+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Ciena Q2 FY2026 revenue $1.57B (+40% YoY), adjusted EPS $1.64 (+290%), raises FY guidance

## Summary
- Revenue $1.57B, up 40% YoY from $1.13B; GAAP EPS $1.49 vs $0.06; adjusted EPS $1.64 vs $0.42 (290% increase).
- Raises FY2026 revenue guidance to $6.3B +/- $100M (midpoint +32% YoY); Q3 guidance $1.625B +/- $50M.
- Adjusted gross margin 44.9% vs 41.0% YoY; adjusted operating margin 19.5% vs 8.2% YoY.
- CEO cites AI-driven demand for high-speed connectivity as structural growth driver.

## SEC filing metadata
- accession: 0001628280-26-040614
- form_type: 8-K
- ticker: CIEN
- cik: 0000936395
- company_name: CIENA CORP
- filed_at: 2026-06-04T11:05:06+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/936395/000162828026040614/0001628280-26-040614-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/936395/000162828026040614/cien-20260604.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-040614
- JSON: https://secwatch.observer/filing/0001628280-26-040614.json
- Plain text: https://secwatch.observer/filing/0001628280-26-040614.txt

## Key facts
- Earnings Releases
  CIENA CORP reported fiscal second quarter ended May 2, 2026 results: revenue $1.57 billion, net income $1.49 GAAP and $1.64 adjusted (non-GAAP) for the fiscal second quarter 2026, EPS $1.64 adjusted (non-GAAP).
  - Period: fiscal second quarter ended May 2, 2026
  - Revenue: $1.57 billion
  - Net income: $1.49 GAAP and $1.64 adjusted (non-GAAP) for the fiscal second quarter 2026
  - EPS: $1.64 adjusted (non-GAAP)
  - Result: reported results
  source text: on that site. --- EX-99.1 (EX-99.1) --- FOR IMMEDIATE RELEASE Ciena Reports Fiscal Second Quarter 2026 Financial Results Summary • Fiscal second quarter 2026 revenue was $1.57 billion, up 40% year-over-year • Fiscal second quarter 2026 adjusted Earnings Per Share (EPS) was $1.64, an increase of 290% compared to fiscal second quarter 2025 • Providing revenue
  evidence_url: https://www.sec.gov/Archives/edgar/data/936395/000162828026040614/0001628280-26-040614-index.htm

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