Westlake (WLK)
Links chemical feedstocks to materials, building products, pipe and fittings across an integrated portfolio.
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Supplies PVC, polyethylene and epoxy materials alongside building products, pipe, fittings and compounds through two integrated segments. Manufacturing spans North America, Europe and Asia, while feedstock and energy costs, construction demand, plant safety, environmental permits and Chao-family voting control shape the business.
Combines Housing and Infrastructure Products with Performance and Essential Materials, linking chemical feedstocks to PVC, polyethylene and epoxy materials and onward to building products, pipe, fittings and compounds. The integrated chain serves construction, packaging, healthcare, automotive, water treatment, wind turbines and coatings.
Operates product-development and manufacturing facilities across North America, Europe and Asia, with most employees based in the United States. Acquisitions broadened the downstream building-products platform and added global epoxy capabilities while preserving integration from ethylene and chlor-alkali into finished materials.
Depends on feedstock and energy costs, cyclical prices and volumes, construction demand, safe continuous plant operation and environmental permits. Chao-family voting control also shapes governance, while acquired-asset integration and unresolved wastewater enforcement remain structural operating factors.
Company facts
Target rangeAs of Sep 22, 2026
Latest analyst notes
| Date | Firm | Action | Prior | Current |
|---|---|---|---|---|
| Sep 11, 2026 | KeyBanc | Initiate | Rating: —Target: — | Target: $92 |
| Sep 9, 2026 | BMO Capital | Reiterate | Rating: —Target: $96 | Target: $82 |
| Aug 6, 2026 | RBC Capital | Reiterate | Rating: —Target: $145 | Target: $95 |
| Jul 16, 2026 | Goldman Sachs | Target | Target: $78 | Target: $85 |
| Jul 6, 2026 | BMO Capital | Reiterate | Rating: —Target: $83 | Target: $96 |
EPSReportedEstimate
RevenueReportedEstimate
Balance sheet, Jun 30, 2026Cash & short-term investments $1.85B · Total debt $5.75B · Total assets $19.44B · Shareholders' equity $8.71B
- Revenue
- $3.27B
- Operating income
- $364.0M
- Net income
- $260.0M
HistoryDividendAnnual yield
| Institutions | ≈ 30.93% | 39.53M shares | |
|---|---|---|---|
| 367 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 74.29% | 94.94M shares | |
| 18 holders · as of Aug 11, 2026 | |||
| Adds to | 105.22% | ||
127.80M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 105.22%; nothing is left for Other.
Top shareholders13F · 13D/G · Form 4
| Holder | Stake | Shares | Date |
|---|---|---|---|
Albert Chao1Insiderdirector, officer: Executive Chairman | 74.01% | 94.38M | filed Aug 11, 2026 |
BlackRock, Inc.Institution | 2.58% | 3.29M | as of Jun 30, 2026 |
Capital World InvestorsInstitution | 2.22% | 2.84M | as of Jun 30, 2026 |
Price T Rowe Associates Inc /MD/Institution | 1.73% | 2.21M | as of Jun 30, 2026 |
Orbis Allan Gray LtdInstitution | 1.63% | 2.08M | as of Jun 30, 2026 |
- Albert Chao's transaction reports restate only vehicles that traded; the 2022 ownership statement (94.38M) plus the 200.9K net shares acquired since is used instead.
Insider tradesForm 4
| Date | Insider | Role | Shares | Avg price |
|---|---|---|---|---|
| Aug 11, 2026 | Albert Chao | director, officer: Executive Chairman | −38,873 | $80.28 |
| Mar 27, 2026 | Robert F. Buesinger | officer: EVP, PEM Segment Head | −4,000 | $115.25 |
| Mar 27, 2026 | Mark Steven Bender | officer: EVP & CFO | −16,413 | $112.54 |
| Feb 27, 2026 | Mark Steven Bender | officer: EVP & CFO | −17,409 | $100.92 |
| Dec 22, 2025 | Albert Chao | director, officer: Executive Chairman | −40,836 | $73.57 |
- Olin
Overlaps in chlor-alkali, vinyl intermediates and epoxy materials
- Dow
Large-scale rival in ethylene and polyethylene
- James Hardie Industries (ADR)
Exterior-building rival in siding, trim and low-maintenance decking
- LyondellBasell
Global rival in ethylene and polyethylene markets
- Huntsman
Epoxy materials rival across coatings, composites and infrastructure
- Trex Company
Direct rival in low-maintenance residential decking
Compare
| Company | Price | Change | |||||
|---|---|---|---|---|---|---|---|
| Westlake | $69.22 | +0.60% | $8.81B | — | 18.9 | 0.8 | +10.8% |
| Olin | $16.89 | +0.42% | $1.92B | — | 52.1 | 0.3 | −0.9% |
| Dow | $28.64 | +1.54% | $20.37B | — | 15.0 | 0.5 | +19.7% |
| James Hardie Industries (ADR) | $27.17 | −0.62% | $15.87B | 108.4 | 19.9 | 2.9 | +63.9% |
| LyondellBasell | $60.34 | +1.86% | $19.12B | — | 7.6 | 0.6 | +19.8% |
| Huntsman | $9.10 | +0.50% | $1.59B | — | 238.7 | 0.3 | +14.1% |
| Trex Company | $44.00 | −0.31% | $4.59B | 26.3 | 22.9 | 3.8 | +7.8% |
| Median | 67.4 | 21.4 | 0.6 | +16.9% |








