---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-002082"
form_type: "8-K"
ticker: "GLW"
cik: "0000024741"
company_name: "CORNING INC /NY"
filed_at: "2023-01-31T23:59:59+00:00"
generated_at: "2026-06-20T05:46:35.345290+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Corning Q4 core EPS $0.47, GAAP loss $(0.04); guides Q1 $0.35-0.42 on China disruptions

## Summary
- Q4 core sales $3.6B, core EPS $0.47; GAAP EPS loss $(0.04) from restructuring and mark-to-market hedges.
- Full-year core sales $14.8B (+5% YoY); core EPS $2.09 (+1% YoY); free cash flow $1.24B.
- Optical Communications annual sales surpassed $5B all-time high; Hemlock & Emerging Growth up 34% YoY.
- Q1 2023 outlook: core sales $3.2-3.4B, core EPS $0.35-0.42; expects China pandemic disruptions; sequential improvement in Q2.
- Pricing and productivity actions taken in Q4 expected to improve margins starting Q1 2023.

## SEC filing metadata
- accession: 0001437749-23-002082
- form_type: 8-K
- ticker: GLW
- cik: 0000024741
- company_name: CORNING INC /NY
- filed_at: 2023-01-31T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- 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/24741/000143774923002082/0001437749-23-002082-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/24741/000143774923002082/glw20220926_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-002082
- JSON: https://secwatch.observer/filing/0001437749-23-002082.json
- Plain text: https://secwatch.observer/filing/0001437749-23-002082.txt

## Key facts
- Earnings Releases
  CORNING INC /NY reported First-Quarter 2023 results: revenue $3.2 billion to $3.4 billion, EPS $0.35 to $0.42. Guidance initiated.
  - Period: First-Quarter 2023
  - Revenue: $3.2 billion to $3.4 billion
  - EPS: $0.35 to $0.42
  - Guidance: initiated
  - Result: guidance update
  source text: For the first quarter, management expects core sales in the range of $3.2 billion to $3.4 billion and core EPS in the range of $0.35 to $0.42.
  evidence_url: https://www.sec.gov/Archives/edgar/data/24741/000143774923002082/0001437749-23-002082-index.htm
- Earnings Releases
  CORNING INC /NY reported Full-Year 2022 results: revenue $14.8 billion, EPS $2.09.
  - Period: Full-Year 2022
  - Revenue: $14.8 billion
  - EPS: $2.09
  - Result: reported results
  source text: debt. ● Free cash flow for the quarter was $377 million. Full-Year 2022: ● For the full year, GAAP sales were $14.2 billion, up 1% year over year, and core sales were $14.8 billion, up 5%, versus a strong 2021. o Optical Communications’ annual sales surpassed $5 billion, reaching an all-time high. o Display Technologies maintained stable pricing year over
  evidence_url: https://www.sec.gov/Archives/edgar/data/24741/000143774923002082/0001437749-23-002082-index.htm
- Earnings Releases
  CORNING INC /NY reported Fourth-Quarter 2022 results: revenue $3.6 billion, EPS $0.47.
  - Period: Fourth-Quarter 2022
  - Revenue: $3.6 billion
  - EPS: $0.47
  - Result: reported results
  source text: Fourth-quarter GAAP sales were $3.4 billion, and core sales were $3.6 billion.
  evidence_url: https://www.sec.gov/Archives/edgar/data/24741/000143774923002082/0001437749-23-002082-index.htm

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