---
schema_version: "secwatch.filing_event.v1"
accession: "0000074303-25-000130"
form_type: "8-K"
ticker: "OLN"
cik: "0000074303"
company_name: "OLIN Corp"
filed_at: "2025-10-27T23:59:59+00:00"
generated_at: "2026-05-17T02:16:24.856330+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Olin Q3 net income $42.8M vs prior loss; guides Q4 adj EBITDA sharply lower to $110-130M

## Summary
- Q3 net income $42.8M ($0.37 diluted EPS) vs Q3 2024 net loss $24.9M ($0.21 loss); revenue $1.71B, up 8%.
- Adjusted EBITDA $222.4M, up from $160.3M year-over-year, includes $32M benefit from Section 45V hydrogen tax credit.
- Chlor Alkali segment earnings $127.6M vs $45.3M; Winchester earnings fell to $19.3M from $53.4M on lower commercial ammo.
- Q4 2025 adjusted EBITDA guided $110-130M, including $40M penalty from planned inventory reductions.
- Net debt $2.85B, net debt/adj EBITDA 3.7x; repurchased 0.5M shares for $10.1M in Q3.

## SEC filing metadata
- accession: 0000074303-25-000130
- form_type: 8-K
- ticker: OLN
- cik: 0000074303
- company_name: OLIN Corp
- filed_at: 2025-10-27T23:59:59+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/74303/000007430325000130/0000074303-25-000130-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/74303/000007430325000130/oln-20251027.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000074303-25-000130
- JSON: https://secwatch.observer/filing/0000074303-25-000130.json
- Plain text: https://secwatch.observer/filing/0000074303-25-000130.txt

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