WLK
Westlake Chemical CorporationNYSE
Basic Materials • Specialty Chemicals
Factor tilt: Mid-Cap Value
$63.49-4.21%
Close Nov 6, 2026
- Market cap
- $8.13B
- 1 month
- +1.9%
- 3 months
- -19.7%
- 1 year
- -3.6%
- 52-week range
- $56.38$123.39
- Dividend, last 12 mo
- $2.123 · 3.34% yield
- Last ex-date
- Aug 25, 2026 · $0.533
- Dividend growth
- 15+ years in a row
- Next-quarter EPS estimate
- $0.50Quarter to Sep 30, 2026 · 13 analysts · revenue $2.94B · -47.2% in 30d
- Short interest
- 12.8% of float4.3M shares · settled Oct 15, 2026 · -12.5% since Sep 30, 2026 · FINRA
Fundamentals · trailing 12 months to Jun 30, 2026
- Revenue
- $11.29B
- Net income
- -$1.24B
- Free cash flow
- -$265M
- Book value
- $8.71B
- Total debt
- $5.75B
- P/E
- —
- Price / sales
- 0.7×
- Price / book
- 0.9×
- FCF yield
- -3.3%
- Net margin
- -10.9%
EODHD (TTM) · as of Nov 6, 2026
End-of-day close from stored market data, not a live quote.
About Westlake Chemical Corporation
Westlake Corporation manufactures and markets performance and essential materials, and housing and infrastructure products in the United States, Canada, Germany, China, Mexico, Brazil, France, Italy, and internationally. It operates through two segments, Performance and Essential Materials and The Housing and Infrastructure Products.
Read more
The Performance and Essential Materials segment offers ethylene, polyethylene, chlor-alkali, chlorinated derivative products, ethylene dichloride, vinyl chloride monomer, polyvinyl chloride (PVC), epoxy specialty resins, and base epoxy resins and intermediaries. The Housing and Infrastructure Products segment provides residential PVC sidings; PVC trim and mouldings; architectural stone veneers; windows; PVC decking; polymer composite and cement roof tiles; PVC pipes and fittings for various water, sewer, electrical, and industrial applications; and PVC compounds for various housing, medical, and automobile products. This segment also offers consumer and commercial products, such as landscape edging; industrial, home, and office matting; marine dock edging; and masonry joint controls. It offers its products to chemical processors; plastics fabricators; small construction contractors; municipalities; and supply warehouses for use in various consumer and industrial markets, including residential construction, flexible and rigid packaging, automotive products, healthcare products, water treatment, wind turbines, and coatings, as well as other durable and non-durable goods. The company was formerly known as Westlake Chemical Corporation and changed its name to Westlake Corporation in February 2022. Westlake Corporation was founded in 1986 and is headquartered in Houston, Texas. Westlake Corporation is a subsidiary of TTWF LP.
- Website
- westlake.com
- Headquarters
- Houston, TX, United States
- Employees
- 14,600
- Listed
- Aug 11, 2004
- Fiscal year ends
- December
Company profile from EODHD, stored Oct 23, 2026.
Quarterly results
The last 8 fiscal quarters as reported (EODHD). Year over year compares the same quarter a year earlier.
| Quarter | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Jun 2026filed Aug 5, 2026 | $3.3B | +10.8% | 19.9% | $364.0M | $260.0M |
| Mar 2026filed Apr 6, 2026 | $2.7B | -6.8% | 3.1% | -$154.0M | -$169.0M |
| Dec 2025filed Feb 26, 2026 | $2.5B | -10.9% | -17.3% | -$671.0M | -$544.0M |
| Sep 2025filed Oct 31, 2025 | $2.8B | -9.0% | 8.3% | -$766.0M | -$782.0M |
| Jun 2025filed Aug 6, 2025 | $3.0B | -7.9% | 8.7% | -$109.0M | -$142.0M |
| Mar 2025filed May 2, 2025 | $2.8B | -4.3% | 8.2% | -$32.0M | -$40.0M |
| Dec 2024filed Feb 25, 2025 | $2.8B | +0.6% | 11.5% | $66.0M | $7.0M |
| Sep 2024filed Nov 6, 2024 | $3.1B | +0.1% | 16.0% | $180.0M | $108.0M |
Fiscal years · last 6
| Fiscal year | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Dec 2025filed Feb 26, 2026 | $11.2B | -8.0% | 2.6% | -$1.6B | -$1.5B |
| Dec 2024filed Feb 25, 2025 | $12.1B | -3.2% | 16.1% | $875.0M | $602.0M |
| Dec 2023filed Feb 22, 2024 | $12.5B | -20.6% | 17.7% | $729.0M | $479.0M |
| Dec 2022filed Feb 22, 2023 | $15.8B | +34.1% | 25.8% | $3.1B | $2.2B |
| Dec 2021filed Feb 23, 2022 | $11.8B | +57.0% | 29.7% | $2.8B | $2.0B |
| Dec 2020filed Feb 24, 2021 | $7.5B | -7.6% | 13.6% | $429.0M | $330.0M |
Short-interest history
FINRA reports open short positions for a settlement date. The publication date is later. These are reported positions, with a separate date for each observation.
Compare the reported short exposure around the dates you bought, sold or watched WLK. A long position benefits from price rises; a short position benefits from falls. A change in these counts does not predict either move.
Settlement Oct 15, 2026
4,259,386 shares short
-608,316 shares (-12.5%) vs Sep 30, 2026
12.8% of the stored float. Published Oct 26, 2026.
Settlement Sep 30, 2026
4,867,702 shares short
-441,845 shares (-8.3%) vs Sep 15, 2026
14.7% of the stored float. Published Oct 9, 2026.
Settlement Sep 15, 2026
5,309,547 shares short
-368,394 shares (-6.5%) vs Aug 31, 2026
15.8% of the stored float. Published Sep 24, 2026.
Settlement Aug 31, 2026
5,677,941 shares short
+741,900 shares (+15%) vs Aug 14, 2026
16.9% of the stored float. Published Sep 10, 2026.
Settlement Aug 14, 2026
4,936,041 shares short
+102,433 shares (+2.1%) vs Jul 31, 2026
14.7% of the stored float. Published Aug 25, 2026.
Settlement Jul 31, 2026
4,833,608 shares short
-441,976 shares (-8.4%) vs Jul 15, 2026
14.4% of the stored float. Published Aug 11, 2026.
Change = this settlement’s shares short − the previous recorded settlement’s shares short; percentage change divides by that earlier count. A zero earlier count has no percentage change. Split-spanning counts are left uncompared. Float percentages use the stored settlement observation, not today’s float.
Source: stored FINRA equity short-interest records, up to six settlements from the last 240 days. FINRA data and reporting dates · How to read short interest
Dividends and stock splits
See the recorded cash amounts and dates behind WLK’s income, and the splits that change its share count. Dates below are stored event records, not confirmation of a payment to your account.
Cash-dividend records
USD 0.533 per share
Ex-dividend date: Aug 25, 2026
Recorded pay date: Sep 10, 2026 (past date)
Cash dividend · Polygon event record
USD 0.53 per share
Ex-dividend date: May 27, 2026
Recorded pay date: Jun 11, 2026 (past date)
Cash dividend · Polygon event record
USD 0.53 per share
Ex-dividend date: Mar 3, 2026
Recorded pay date: Mar 18, 2026 (past date)
Cash dividend · Polygon event record
USD 0.53 per share
Ex-dividend date: Nov 25, 2025
Recorded pay date: Dec 11, 2025 (past date)
Cash dividend · Polygon event record
USD 0.53 per share
Ex-dividend date: Aug 19, 2025
Recorded pay date: Sep 4, 2025 (past date)
Cash dividend · Polygon event record
USD 0.525 per share
Ex-dividend date: May 20, 2025
Recorded pay date: Jun 5, 2025 (past date)
Cash dividend · Polygon event record
Up to six Polygon cash-dividend events, including recorded ex-dates within the next 120 days. Amounts retain their recorded currency and decimal precision. Historical amounts are not restated to a common split basis, annualized, or converted to dollars.
For a long holding, compare the ex-date with when you held the shares and check the pay date against your broker’s cash history. Owning the stock today does not establish past entitlement. For a short holding, a dividend can create a payment obligation to the share lender.
Ex-dates and special dividend rules · Short-sale dividend obligations · Dividend data definitions
Split history
2 for 1 · forward split
Effective Mar 19, 2014
Each 1 pre-split share becomes 2 post-split shares.
Source: EODHD
Up to six stored split dates through Nov 7, 2026. Equivalent vendor ratios are combined; conflicting ratios are left out. This history may be incomplete.
A split changes the share count and per-share price basis; it does not by itself add investment value. Put your holding’s earlier and later share counts on the same basis before comparing them. This applies to both long shares and shares owed on a short position.
How stock splits workPortfolio context
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Smart money context
Holder IQ: MEDIUM
37 smart-money holders: institutions with a high Holder IQ
Q2 2026, filed Oct 30, 2026
Smart-money 13F trend: accumulating (light)
Unlock crowding heatmapUnlock filer discoveryInsider context
Sentiment: neutral
Last trade: sell 88 days ago
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What it means for you
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What happened
Stored recent-activity label: neutral. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Red flags: 1
Read the insider context evidence
What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
Stored recent-activity label: neutral. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Largest 13-F holders · Q2 2026
360 filers reported a long position in WLK for Q2 2026. 13-F holdings are filed up to 45 days after the quarter ends.
The top 10 hold
51.1%
of the 39.7M shares 13-F filers reported
Moves vs Q1 2026
5 added5 trimmed
Net shares held
-12.4%
across the 10 holders with a comparable Q1 2026 book
| Rank | Holder | Value | Shares | Shares vs Q1 2026 |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $240.5M · 3.3M shares | 3.3M | +7% |
| 2 | Capital World Investors | $207.5M · 2.8M shares | 2.8M | -32.5% |
| 3 | PRICE T ROWE ASSOCIATES INC /MD/ | $161.1M · 2.2M shares | 2.2M | -8.3% |
| 4 | Orbis Allan Gray Ltd | $152.2M · 2.1M shares | 2.1M | -60.6% |
| 5 | DIMENSIONAL FUND ADVISORS LP | $149.8M · 2.1M shares | 2.1M | +39.9% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | $127.9M · 1.8M shares | 1.8M | -1% |
| 7 | BRANDES INVESTMENT PARTNERS, LP | $114.8M · 1.6M shares | 1.6M | -14.6% |
| 8 | AQR CAPITAL MANAGEMENT LLC | $114.6M · 1.6M shares | 1.6M | +503.9% |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | $106.9M · 1.5M shares | 1.5M | +0.6% |
| 10 | STATE STREET CORP | $106.1M · 1.5M shares | 1.5M | +5.3% |
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