Westlake (WLK) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
- Closed at $63.61, +2.25% vs the prior close of $62.21.
- Volume 701.30K shares, 0.8x its 50-day average.
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
WLK rises 2.3% to $63.61, 3 up days in a row. Closed at $63.61, +2.25% vs the prior close of $62.21. Day range $61.70–$64.10, opened at $62.67.
WLK daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — WLK rises 2.3% to $63.61, 3 up days in a row
- Closed at $63.61, +2.25% vs the prior close of $62.21. Day range $61.70–$64.10, opened at $62.67.
- Volume was 701.30K shares, 0.8x its 50-day average of 848.88K.
- Price is -10.6% vs its 50-day average ($71.14) and -27.5% vs its 200-day average ($87.76).
- 52-week range $56.33–$124.23; today's close sits at 11% of that range, 48.8% below the 52-week high.
- That makes 3 straight gains.
Oct 14, 2026 — WLK rises 0.6% to $62.21
- Closed at $62.21, +0.57% vs the prior close of $61.86. Day range $61.00–$62.36, opened at $61.50.
- Volume was 831.30K shares, 0.9x its 50-day average of 892.44K.
- Price is -12.9% vs its 50-day average ($71.44) and -29.2% vs its 200-day average ($87.81).
- 52-week range $56.33–$124.23; today's close sits at 9% of that range, 49.9% below the 52-week high.
Oct 13, 2026 — WLK ends flat (+0.0%) to $61.86
- Closed at $61.86, +0.02% vs the prior close of $61.85. Day range $61.72–$63.33, opened at $62.11.
- Volume was 740.70K shares, 0.8x its 50-day average of 922.01K.
- Price is -13.9% vs its 50-day average ($71.81) and -29.6% vs its 200-day average ($87.87).
- 52-week range $56.33–$124.23; today's close sits at 8% of that range, 50.2% below the 52-week high.
Oct 12, 2026 — WLK dips 0.7% to $61.85
- Closed at $61.85, -0.71% vs the prior close of $62.29. Day range $60.99–$62.32, opened at $61.86.
- Volume was 987.60K shares, 1.1x its 50-day average of 932.29K.
- Price is -14.1% vs its 50-day average ($71.97) and -29.7% vs its 200-day average ($87.93).
- 52-week range $56.33–$124.23; today's close sits at 8% of that range, 50.2% below the 52-week high.
Oct 9, 2026 — WLK ends flat (-0.0%) to $62.29
- Closed at $62.29, -0.03% vs the prior close of $62.31. Day range $61.68–$62.79, opened at $62.39.
- Volume was 766.10K shares, 0.8x its 50-day average of 944.52K.
- Price is -13.7% vs its 50-day average ($72.15) and -29.2% vs its 200-day average ($87.99).
- 52-week range $56.33–$124.23; today's close sits at 9% of that range, 49.9% below the 52-week high.
Oct 8, 2026 — WLK rises 1.3% to $62.31
- Closed at $62.31, +1.28% vs the prior close of $61.52. Day range $60.78–$62.35, opened at $61.50.
- Volume was 1.17M shares, 1.2x its 50-day average of 949.27K.
- Price is -13.9% vs its 50-day average ($72.34) and -29.2% vs its 200-day average ($88.05).
- 52-week range $56.33–$124.23; today's close sits at 9% of that range, 49.8% below the 52-week high.
Oct 7, 2026 — WLK dips 2.9% to $61.52, a 6-month low
- Closed at $61.52, -2.95% vs the prior close of $63.39. Day range $59.84–$63.18, opened at $62.83.
- Volume was 1.15M shares, 1.2x its 50-day average of 944.11K.
- Price is -15.2% vs its 50-day average ($72.53) and -30.2% vs its 200-day average ($88.10).
- 52-week range $56.33–$124.23; today's close sits at 8% of that range, 50.5% below the 52-week high.
Oct 6, 2026 — WLK dips 1.9% to $63.39
- Closed at $63.39, -1.89% vs the prior close of $64.61. Day range $63.07–$64.80, opened at $64.56.
- Volume was 916.70K shares, 1.0x its 50-day average of 952.59K.
- Price is -12.9% vs its 50-day average ($72.75) and -28.1% vs its 200-day average ($88.17).
- 52-week range $56.33–$124.23; today's close sits at 10% of that range, 49.0% below the 52-week high.
Oct 5, 2026 — WLK rises 1.7% to $64.61, 3 up days in a row
- Closed at $64.61, +1.75% vs the prior close of $63.50. Day range $62.28–$65.86, opened at $63.24.
- Volume was 1.06M shares, 1.1x its 50-day average of 955.28K.
- Price is -11.4% vs its 50-day average ($72.93) and -26.8% vs its 200-day average ($88.22).
- 52-week range $56.33–$124.23; today's close sits at 12% of that range, 48.0% below the 52-week high.
- That makes 3 straight gains.
Oct 2, 2026 — WLK rises 1.6% to $63.50
- Closed at $63.50, +1.65% vs the prior close of $62.47. Day range $61.80–$64.92, opened at $62.67.
- Volume was 1.50M shares, 1.6x its 50-day average of 940.62K.
- Price is -13.1% vs its 50-day average ($73.11) and -28.1% vs its 200-day average ($88.26).
- 52-week range $56.33–$124.23; today's close sits at 11% of that range, 48.9% below the 52-week high.
WLK latest news & SEC filings
Every SEC filing by or about WLK in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Sep 29, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.05 — Costs tied to exiting activities / restructuring.
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
Sep 1, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 31, 2026 · 3 — Initial insider ownership statement (Form 3)
Initial insider ownership statement (Form 3) — a new director, officer or 10% owner disclosed their holdings
Aug 31, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 5.02 — Change in directors or officers (appointment, departure or pay).
Aug 17, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 17, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 17, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 17, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 5, 2026 · 10-Q — Quarterly report (unaudited financial statements for the quarter)
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $3.27B (prior year $2.95B) (+10.8% vs Jun 30, 2025)
- Net income: $260.00M (prior year -$142.00M) (swung to profit vs Jun 30, 2025)
- Diluted EPS: $2.01 (prior year -$1.11) (swung to profit vs Jun 30, 2025)
Aug 4, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jul 29, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Things to know before you trade WLK
- Last results release: Aug 4, 2026 (8-K Item 2.02). Previous ones: May 5, 2026, Feb 24, 2026, Oct 30, 2025. Based on that rhythm, the next report is likely around Nov 3, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 1.57% (largest 5.2%).
- Liquidity: about 947.79K shares (≈$60.29M) trade per day on average.
- 52-week position: $63.61 vs a range of $56.33–$124.23 (11% of the range).
- Dividends: last ex-dividend date Aug 25, 2026 ($0.533/share); 4 payments in the past 12 months.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 9 sales; latest: Albert Chao sold 31,384 shares on Aug 11, 2026.
- Latest filings: 8-K Sep 29, 2026; 8-K Aug 31, 2026; 10-Q Aug 5, 2026.
- Share count: 127.80M shares outstanding (Jul 29, 2026), -0.4% vs a year earlier.
- Listing: NYSE · industry: Industrial Organic Chemicals.
WLK market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 62.67 | 64.10 | 61.70 | 63.61 | 701.30K |
| Oct 14, 2026 | 61.50 | 62.36 | 61.00 | 62.21 | 831.30K |
| Oct 13, 2026 | 62.11 | 63.33 | 61.72 | 61.86 | 740.70K |
| Oct 12, 2026 | 61.86 | 62.32 | 60.99 | 61.85 | 987.60K |
| Oct 9, 2026 | 62.39 | 62.79 | 61.68 | 62.29 | 766.10K |
| Oct 8, 2026 | 61.50 | 62.35 | 60.78 | 62.31 | 1.17M |
| Oct 7, 2026 | 62.83 | 63.18 | 59.84 | 61.52 | 1.15M |
| Oct 6, 2026 | 64.56 | 64.80 | 63.07 | 63.39 | 916.70K |
| Oct 5, 2026 | 63.24 | 65.86 | 62.28 | 64.61 | 1.06M |
| Oct 2, 2026 | 62.67 | 64.92 | 61.80 | 63.50 | 1.50M |
| Oct 1, 2026 | 60.66 | 62.55 | 58.95 | 62.47 | 2.17M |
| Sep 30, 2026 | 63.01 | 63.61 | 62.30 | 62.31 | 1.28M |
| Sep 29, 2026 | 65.59 | 65.59 | 62.70 | 63.39 | 1.50M |
| Sep 28, 2026 | 67.65 | 67.75 | 66.31 | 66.84 | 444.20K |
| Sep 25, 2026 | 66.44 | 67.75 | 65.66 | 67.71 | 645.80K |
| Sep 24, 2026 | 68.40 | 68.56 | 66.72 | 66.76 | 585.30K |
| Sep 23, 2026 | 68.97 | 69.39 | 68.35 | 68.42 | 504.90K |
| Sep 22, 2026 | 67.98 | 70.30 | 67.84 | 68.80 | 694.60K |
| Sep 21, 2026 | 69.40 | 69.42 | 67.74 | 67.77 | 576.30K |
| Sep 18, 2026 | 70.03 | 70.07 | 68.74 | 69.07 | 721.40K |
About Westlake
Westlake (WLK) is listed on the NYSE and classified by the SEC under “Industrial Organic Chemicals”. Its business address is in HOUSTON, TX. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1262823.
WLK board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Roger A Cregg | Director | Aug 17, 2026 |
| Albert Chao | Executive Chairman | Aug 11, 2026 |
| Catherine T. Chao | Director | Aug 17, 2026 |
| David Tsung-Hung Chao | Director | Aug 17, 2026 |
| James Chao | Senior Chairman | Feb 23, 2026 |
| John Tsung-Chen Chao | Director | Feb 23, 2026 |
| Michael J Graff | Director | Aug 17, 2026 |
| Kimberly S Lubel | Director | Aug 17, 2026 |
| Mark A Mccollum | Director | Aug 17, 2026 |
| R Bruce Northcutt | Director | Aug 17, 2026 |
| Bhavesh V. Patel | Director | Aug 17, 2026 |
| Carolyn Chao Sabat | Director | Aug 17, 2026 |
| Jeffrey Wayne Sheets | Director | Aug 17, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Jonathan Baksht | SVP and CFO | Jun 16, 2026 |
| Mark Steven Bender | EVP & CFO | May 14, 2026 |
| Robert F. Buesinger | EVP, PEM Segment Head | Mar 31, 2026 |
| Albert Chao | Executive Chairman | Aug 11, 2026 |
| James Chao | Senior Chairman | Feb 23, 2026 |
| Tommy Darby | VP and CAO | Sep 1, 2026 |
| L. Benjamin Ederington | EVP, Legal & External Affairs | Feb 23, 2026 |
| Jean-Marc Gilson | President and CEO | Feb 23, 2026 |
| Jeffrey Adam Holy | VP and CAO | Feb 23, 2026 |
| Brian John Powers | SVP, PEM Segment Head | Apr 6, 2026 |
| Scott Thomas Szwejbka | SVP, HIP Segment Head | Feb 23, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 11, 2026 | Albert Chao | Sale | 31,384 | $80.42 |
| Aug 11, 2026 | Albert Chao | Sale | 7,489 | $79.70 |
| Mar 27, 2026 | Robert F. Buesinger | Sale | 4,000 | $115.25 |
| Mar 27, 2026 | Mark Steven Bender | Sale | 16,413 | $112.54 |
| Feb 27, 2026 | Mark Steven Bender | Sale | 421 | $101.52 |
| Feb 27, 2026 | Mark Steven Bender | Sale | 16,988 | $100.91 |
| Dec 22, 2025 | Albert Chao | Sale | 521 | $74.44 |
| Dec 22, 2025 | Albert Chao | Sale | 9,711 | $72.82 |
| Dec 22, 2025 | Albert Chao | Sale | 30,604 | $73.80 |
WLK financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $11.17B | $-1.51B | -11.70 | $465.00M |
| Dec 31, 2024 | $12.14B | $602.00M | 4.64 | $1.31B |
| Dec 31, 2023 | $12.55B | $479.00M | 3.70 | $2.34B |
| Dec 31, 2022 | $15.79B | $2.25B | 17.34 | $3.40B |
| Dec 31, 2021 | $11.78B | $2.02B | 15.58 | $2.39B |
Latest balance sheet: total assets $19.44B, total liabilities $10.23B, cash $1.64B (as of Jun 30, 2026).
WLK earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Aug 4, 2026 | 8-K Item 2.02 (results) | $80.63 |
| May 5, 2026 | 8-K Item 2.02 (results) | $104.78 |
| Feb 24, 2026 | 8-K Item 2.02 (results) | $104.17 |
| Oct 30, 2025 | 8-K Item 2.02 (results) | $68.29 |
| Aug 5, 2025 | 8-K Item 2.02 (results) | $83.08 |
| May 2, 2025 | 8-K Item 2.02 (results) | $79.85 |
| Feb 24, 2025 | 8-K Item 2.02 (results) | $109.53 |
| Nov 5, 2024 | 8-K Item 2.02 (results) | $132.55 |
| Aug 6, 2024 | 8-K Item 2.02 (results) | — |
| May 1, 2024 | 8-K Item 2.02 (results) | — |
| Feb 20, 2024 | 8-K Item 2.02 (results) | — |
| Feb 6, 2024 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.