Westlake Corp (WLK) stock
Close on Nov 12, 2026Market cap $8.02BP/E –Yield 3.36%
Westlake Corp saw revenue fall 0.4% to $11.44B over the twelve months to Sep 30, 2026. Free cash flow was $12.00M. At the latest close the market valued the company at $8.02B.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026
Valuation
- Market cap
- $8.02B
- P/E ratio
- –
- Price to sales
- 0.70
- Price to book
- 0.93
- Dividend yield
- 3.36%
- Free cash flow yield
- 0.15%
Fundamentals
- Revenue
- $11.44B
- Net income
- -$447.00M
- EPS, diluted
- -$3.49
- Free cash flow
- $12.00M
- Book value per share
- $67.67
- Diluted shares
- 128M
Trading
- Next earnings
- Feb 23, 2027 (estimated, before the open)
- Previous close
- $63.88
- Open
- $64.40
- Day's range
- $62.60 – $64.56
- Volume
- 774,621
- Average volume (20 days)
- 990,504
- Index membership
- S&P MidCap 400 (since Nov 2022), Russell 1000, Russell 3000
- Beta (5 years)
- 0.94
- 52-week range
- $56.33 – $124.23
- RSI (14 days)
- 44.9
- Volatility (1 year)
- 43.4%
- Relative volume
- 0.61×
- WACC
- 7.4%
Index membership is inferred from the holdings of funds that track each index (IJH, SPMD, IWB, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2010, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.
| Period | WLK | S&P 500 | Difference | WLK per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +1.5% | -2.7% | +4.2 pts | ||
| 3 months | -20.1% | -1.7% | −18.4 pts | ||
| Year to date | -13.6% | +11.9% | −25.4 pts | ||
| 1 year | +2.7% | +12.0% | −9.3 pts | ||
| 3 years | -45.2% | +78.2% | −123.4 pts | -18.2% | +21.2% |
| 5 years | -34.4% | +73.2% | −107.7 pts | -8.1% | +11.6% |
| 10 years | +38.3% | +309.6% | −271.3 pts | +3.3% | +15.1% |
Fifteen years at a glance
Fiscal years 2011 to 2025 and trailing twelve months, USD
Revenue
Gross profit
Operating income
Net income
EPS, diluted
Free cash flow
Press releases
Releases Westlake filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- Results
- Update
- Results
- Results
- Update
About Westlake
Industrial Organic Chemicals
Westlake Corporation manufactures and markets housing and infrastructure products as well as essential materials and specialty chemicals. The company operates through two primary divisions: Housing and Infrastructure Products (HIP) and Performance and Essential Materials (PEM). Its HIP segment provides building materials such as siding, trim, architectural stone veneer, roofing, windows, outdoor living items, polyvinyl chloride (PVC) pipes, fittings, and polymer compounds. The PEM segment produces chemical building blocks including ethylene, chlorine, caustic soda, vinyl chloride monomer, PVC, polyethylene, and epoxy resins. These offerings serve diverse end markets spanning residential and light commercial construction, municipal infrastructure, flexible and rigid packaging, automotive, coatings, electronics, and medical applications. Westlake markets its goods directly through internal sales personnel, manufacturer representatives, and regional distributor networks.
Company profile, executives and historyWestlake stock: common questions
What is Westlake's stock price?
WLK closed at $62.78 on Nov 12, 2026, down 1.72% on the day. Over the past 52 weeks it traded between $56.33 and $124.23.
What is Westlake's market cap?
Westlake was worth $8.02B at the close on Nov 12, 2026: the share price times the diluted shares outstanding.
What is WLK's P/E ratio?
Westlake lost money over the twelve months to Sep 30, 2026 (diluted EPS -$3.49), so it has no meaningful P/E ratio.
How much revenue does Westlake make?
Westlake reported revenue of $11.44B for the twelve months to Sep 30, 2026, down 0.4% from a year earlier.
Does Westlake pay a dividend?
Yes. Westlake paid $2.11 per share over the last twelve months, a yield of 3.36% at the latest price, and has raised its annual dividend 12 years in a row.
When does Westlake report earnings next?
Westlake is expected to report Q4 FY2026 results on Feb 23, 2027, before the open. The date is estimated from its past reporting pattern until the company confirms it.
How has WLK stock performed over the past year?
Including dividends, WLK returned +2.7% over the past year, against +12.0% for the S&P 500.
How many WLK shares are sold short?
4M shares were sold short at the latest FINRA report, 11.98% of the float, or 4.4 days of average trading volume.
Who are Westlake's competitors?
Companies most similar to Westlake by business, industry and size include MEOH, LYB, NEU, BAK, WLKP.
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