Loading the section
Prices delayed by 15 minutes
Next earnings report: 29 October 2026 · Earnings calendar
The series is stated in the current share scale after splits; dividends are not included in the price
Westlake Corporation trades on NYSE under the ticker WLK. The company belongs to the Materials sector. The trading history on this page starts on 22 August 2016.
Over the past 52 weeks WLK has traded between 56.33 $ and 124.23 $. As of 09 October 2026 the price stood 8.81 % of the way from the 52-week low to the high.
Over one year WLK shares fell 22.46 %; over six months they fell 46.84 %. Volatility over 90 days is 36.31 %. Dividends are not included: this is price change only, as of 09 October 2026.
The company reported a loss over the last four quarters, so a price-to-earnings ratio is not calculated. Price to sales is 0.7, below the sector median of 1.6. Price to book is 0.9, below the sector median of 2.0. Calculated from reports for the period ending 31 March 2026.
| Date | Open | High | Low | Close | Volume, shares |
|---|---|---|---|---|---|
| 08 October 2026 | 61.50 | 62.35 | 60.78 | 62.31 | 1M |
| 07 October 2026 | 62.83 | 63.18 | 59.84 | 61.52 | 1M |
| 06 October 2026 | 64.56 | 64.80 | 63.07 | 63.39 | 916,700 |
| 05 October 2026 | 63.24 | 65.86 |
Based on the last 12 months of reports, through 31 March 2026
The sector median covers every company in the sector on the US market, loss-making ones included.
Westlake Corporation (WLK) is a public company in the materials sector. Its common stock trade on NYSE.
Over the trailing twelve months as reported to 2025-12-31, revenue was 11.2bn $, net income was -1.5bn $. Incorporated in US.
This summary is compiled automatically from SEC filings and exchange data.
Address:2801 POST OAK BLVD SUITE 600, HOUSTON, TX, 77056, US
Westlake Corporation reported revenue of 11.0B $ and a net loss of 1.6B $ over the last four quarters. Net margin is −14.96 %. Revenue changed by −8.63 % year over year. Earnings per share are −12.70 $. Market capitalisation is 7.9B $.
WLK has a return on equity of −19.21 %, below the sector median of 0.42 %. Return on assets is −8.33 %, below the sector median of −0.04 %. Operating margin is −15.65 %, below the sector median of 6.90 %.
| 47M |
| SXTSensient Technologies Corporation | 130.66 | −1.04 % | 44M |
| GPREGreen Plains, Inc. | 14.68 | −2.52 % | 23M |
| REXREX American Resources Corporation | 41.82 | −6.75 % | 11M |
| ALTOAlto Ingredients, Inc. | 3.73 | −0.13 % | 5M |
| 62.28 |
| 64.61 |
| 1M |
| 02 October 2026 | 62.67 | 64.92 | 61.80 | 63.50 | 2M |
| 01 October 2026 | 60.66 | 62.55 | 58.95 | 62.47 | 2M |
| 30 September 2026 | 63.01 | 63.61 | 62.30 | 62.31 | 1M |
| 29 September 2026 | 65.59 | 65.59 | 62.70 | 63.39 | 1M |
| 28 September 2026 | 67.65 | 67.75 | 66.31 | 66.84 | 444,200 |
| 25 September 2026 | 66.44 | 67.75 | 65.66 | 67.71 | 645,800 |
| 24 September 2026 | 68.40 | 68.56 | 66.72 | 66.76 | 585,300 |
| 23 September 2026 | 68.97 | 69.39 | 68.35 | 68.42 | 504,900 |
| 22 September 2026 | 67.98 | 70.30 | 67.84 | 68.80 | 694,600 |
| 21 September 2026 | 69.40 | 69.42 | 67.74 | 67.77 | 576,300 |
| 18 September 2026 | 70.03 | 70.07 | 68.74 | 69.07 | 721,400 |
| 17 September 2026 | 71.26 | 71.62 | 69.83 | 70.57 | 485,100 |
| 16 September 2026 | 69.81 | 71.63 | 69.39 | 70.66 | 537,400 |
| 15 September 2026 | 68.84 | 70.18 | 68.55 | 70.02 | 864,500 |
| 14 September 2026 | 71.05 | 72.48 | 68.63 | 68.96 | 976,500 |
| 11 September 2026 | 71.94 | 72.50 | 70.44 | 70.81 | 533,800 |