---
schema_version: "secwatch.filing_event.v1"
accession: "0001262823-23-000017"
form_type: "8-K"
ticker: "WLK"
cik: "0001262823"
company_name: "WESTLAKE CORP"
filed_at: "2023-05-04T23:59:59+00:00"
generated_at: "2026-06-15T20:48:14.636492+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Westlake Q1 net income $394M, up 70% seq but down 48% YoY

## Summary
- Diluted EPS $3.05 vs $5.83 YoY and $1.79 Q4 2022; net sales $3.356B down 17% YoY.
- EBITDA $825M, up 33% from Q4 2022, down 37% YoY; EBITDA margin 25%.
- PEM segment EBITDA $615M (26% margin) vs $443M (19%) Q4; HIP EBITDA $205M (20%) vs $133M (14%).
- Cost savings $25M achieved in Q1 toward 2023 target of $55–$105M; cash $2.414B, debt $4.892B.
- Management cautious on macro due to rising interest rates but optimistic for typical Q2 seasonality.

## SEC filing metadata
- accession: 0001262823-23-000017
- form_type: 8-K
- ticker: WLK
- cik: 0001262823
- company_name: WESTLAKE CORP
- filed_at: 2023-05-04T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1262823/000126282323000017/0001262823-23-000017-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1262823/000126282323000017/wlk-20230504.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001262823-23-000017
- JSON: https://secwatch.observer/filing/0001262823-23-000017.json
- Plain text: https://secwatch.observer/filing/0001262823-23-000017.txt

## Key facts
- Earnings Releases
  WESTLAKE CORP reported first quarter 2023 results: revenue $3,356 million, net income $394 million, EPS $3.05.
  - Period: first quarter 2023
  - Revenue: $3,356 million
  - Net income: $394 million
  - EPS: $3.05
  - Result: reported results
  source text: For the three months ended March 31, 2023, the Company reported quarterly net income of $394 million, or $3.05 per share, on net sales of $3,356 million.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1262823/000126282323000017/0001262823-23-000017-index.htm

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