Westlake Stock Price History
NYSE: WLKIndustrialsMajor ChemicalsUSD
62.29-0.02 (-0.03%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
WLK price history at a glance
The price history for Westlake (WLK) on this page begins on August 9, 2004, when the stock closed at $7.46; it most recently closed at $62.29 on October 5, 2026. The highest price in this record is $162.64, reached on April 8, 2024; the latest close is 61.7% below that peak. Across the 21 complete calendar years in the table, WLK finished higher in 13 and lower in 8. Its best year was 2012 (+105.7%) and its worst was 2007 (-48.9%).
Over roughly 22 years the share price changed +735.0%, a 10.1% compound annual price return (excluding dividends). In the last 12 months alone, WLK has lost 22.8%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2004
- $162.64
- Date of high
- Apr 8, 2024
- Low since 2004
- $5.15
- Date of low
- Mar 9, 2009
- 52-week high
- $124.23
- 52-week low
- $56.33
- IPO year
- 2004
- Last close
- $62.29
WLK returns
1 week
-1.91%
1 month
-13.22%
3 months
-17.49%
6 months
-47.38%
Year to date
-15.76%
1 year
-22.83%
3 years
-48.56%
5 years
-36.50%
WLK price return, excluding dividends.
WLK annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 62.29 | -15.99% |
| 2025 | 74.15 | -33.78% |
| 2024 | 111.98 | -19.99% |
| 2023 | 139.96 | +36.49% |
| 2022 | 102.54 | +5.57% |
| 2021 | 97.13 | +19.03% |
| 2020 | 81.60 | +20.80% |
| 2019 | 67.55 | -2.90% |
| 2018 | 69.57 | -34.69% |
| 2017 | 106.53 | +90.27% |
| 2016 | 55.99 | +3.07% |
| 2015 | 54.32 | -11.95% |
| 2014 | 61.69 | +2.76% |
| 2013 | 60.04 | +45.03% |
| 2012 | 41.40 | +105.74% |
| 2011 | 20.12 | -7.43% |
| 2010 | 21.74 | +74.37% |
| 2009 | 12.47 | +49.46% |
| 2008 | 8.34 | +3.93% |
| 2007 | 8.03 | -48.85% |
| 2006 | 15.69 | +8.92% |
| 2005 | 14.41 | -13.74% |
| 2004* | 16.70 | +123.86% |
* Partial year: the record begins after the start of 2004; return measured from the first available close.
2026 return is year to date.
WLK daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 62.39 | 62.79 | 61.68 | 62.29 | -0.03% | |
| 61.50 | 62.35 | 60.78 | 62.31 | +1.28% | |
| 62.83 | 63.18 | 59.84 | 61.52 | -2.95% | |
| 64.56 | 64.80 | 63.07 | 63.39 | -1.89% | |
| 63.24 | 65.86 | 62.28 | 64.61 | +1.75% | |
| 62.67 | 64.92 | 61.80 | 63.50 | +1.65% | |
| 60.66 | 62.55 | 58.95 | 62.47 | +0.26% | |
| 63.01 | 63.61 | 62.30 | 62.31 | -1.70% | |
| 65.59 | 65.59 | 62.70 | 63.39 | -5.16% | |
| 67.65 | 67.75 | 66.31 | 66.84 | -1.28% | |
| 66.44 | 67.75 | 65.66 | 67.71 | +1.42% | |
| 68.40 | 68.56 | 66.72 | 66.76 | -2.43% | |
| 68.97 | 69.39 | 68.35 | 68.42 | -0.55% | |
| 67.98 | 70.30 | 67.84 | 68.80 | +1.52% | |
| 69.40 | 69.42 | 67.74 | 67.77 | -1.88% | |
| 70.03 | 70.07 | 68.74 | 69.07 | -2.13% | |
| 71.26 | 71.62 | 69.83 | 70.57 | -0.13% | |
| 69.81 | 71.63 | 69.39 | 70.66 | +0.91% | |
| 68.84 | 70.18 | 68.55 | 70.02 | +1.54% | |
| 71.05 | 72.48 | 68.63 | 68.96 | -2.61% | |
| 71.94 | 72.50 | 70.44 | 70.81 | -1.13% | |
| 71.87 | 73.75 | 70.69 | 71.62 | -0.22% | |
| 72.70 | 73.39 | 70.74 | 71.78 | -3.97% | |
| 75.56 | 76.14 | 74.63 | 74.75 | -0.05% | |
| 74.05 | 75.56 | 73.73 | 74.79 | +0.25% | |
| 77.19 | 77.45 | 74.51 | 74.60 | -2.19% | |
| 73.60 | 76.82 | 73.60 | 76.27 | +2.75% | |
| 75.02 | 75.59 | 73.45 | 74.23 | -1.12% | |
| 76.05 | 76.52 | 74.28 | 75.07 | -0.85% | |
| 74.72 | 76.02 | 73.92 | 75.71 | +2.41% | |
| 74.22 | 74.78 | 72.91 | 73.93 | -0.91% | |
| 74.47 | 74.93 | 72.90 | 74.61 | -0.25% | |
| 75.52 | 75.67 | 74.60 | 74.80 | -2.21% | |
| 78.67 | 79.18 | 76.19 | 76.49 | -3.09% | |
| 79.13 | 80.09 | 78.81 | 78.93 | +0.10% | |
| 78.58 | 80.19 | 78.01 | 78.85 | -0.76% | |
| 78.39 | 80.58 | 77.66 | 79.45 | +2.49% | |
| 78.28 | 79.04 | 76.45 | 77.52 | -0.88% | |
| 79.05 | 79.50 | 77.31 | 78.21 | -1.68% | |
| 80.66 | 80.86 | 79.37 | 79.55 | -0.80% | |
| 78.49 | 80.35 | 78.00 | 80.19 | +1.29% | |
| 80.38 | 80.41 | 78.03 | 79.17 | -2.07% | |
| 78.82 | 80.98 | 78.82 | 80.84 | +2.21% | |
| 77.26 | 79.31 | 76.62 | 79.09 | +2.09% | |
| 76.95 | 79.15 | 76.33 | 77.47 | 0.00% | |
| 79.77 | 80.57 | 77.35 | 77.47 | -1.61% | |
| 79.42 | 79.77 | 75.48 | 78.74 | -2.34% | |
| 72.86 | 80.64 | 72.72 | 80.63 | +15.37% | |
| 70.16 | 71.00 | 68.70 | 69.89 | -0.87% | |
| 71.03 | 71.50 | 68.48 | 70.50 | -1.70% | |
| 72.52 | 72.89 | 70.98 | 71.72 | -0.73% | |
| 72.88 | 73.01 | 71.26 | 72.25 | +0.12% | |
| 73.17 | 74.32 | 71.89 | 72.16 | -0.24% | |
| 73.22 | 73.54 | 71.86 | 72.33 | -2.02% | |
| 75.10 | 75.10 | 73.44 | 73.82 | -1.87% | |
| 78.17 | 78.33 | 74.70 | 75.23 | -2.37% | |
| 76.98 | 77.99 | 76.14 | 77.06 | +1.10% | |
| 77.26 | 77.35 | 75.34 | 76.22 | -0.90% | |
| 77.08 | 77.69 | 76.00 | 76.91 | -0.93% | |
| 78.20 | 79.84 | 77.08 | 77.63 | +0.71% | |
| 76.47 | 78.17 | 76.44 | 77.08 | +0.04% | |
| 76.50 | 77.61 | 76.07 | 77.05 | +0.01% | |
| 77.10 | 78.00 | 75.28 | 77.04 | +1.28% | |
| 76.71 | 78.07 | 75.29 | 76.07 | +0.77% | |
| 75.30 | 75.76 | 74.67 | 75.49 | +1.36% | |
| 75.22 | 76.26 | 74.28 | 74.48 | -1.74% | |
| 77.72 | 78.60 | 75.76 | 75.80 | -0.62% | |
| 75.04 | 77.13 | 74.82 | 76.27 | +1.97% | |
| 73.95 | 75.27 | 72.71 | 74.80 | +0.04% | |
| 72.88 | 75.13 | 72.88 | 74.77 | +2.68% | |
| 71.86 | 74.26 | 71.23 | 72.82 | -0.25% | |
| 74.68 | 75.21 | 72.71 | 73.00 | -2.30% | |
| 76.44 | 76.53 | 73.73 | 74.72 | -2.48% | |
| 76.00 | 77.18 | 75.58 | 76.62 | +0.10% | |
| 75.25 | 76.81 | 74.66 | 76.54 | +0.88% | |
| 75.74 | 76.67 | 73.77 | 75.87 | -0.80% | |
| 77.37 | 78.32 | 76.26 | 76.48 | -1.89% | |
| 79.29 | 79.70 | 77.27 | 77.95 | -2.90% | |
| 82.94 | 83.09 | 80.09 | 80.28 | -3.83% | |
| 83.67 | 87.27 | 83.23 | 83.48 | -1.01% | |
| 86.89 | 87.66 | 83.92 | 84.33 | -3.57% | |
| 87.65 | 88.76 | 86.16 | 87.45 | -1.19% | |
| 87.45 | 89.47 | 86.53 | 88.50 | +1.41% | |
| 88.43 | 89.23 | 86.43 | 87.27 | +0.17% | |
| 86.50 | 88.99 | 85.81 | 87.12 | +1.17% | |
| 85.63 | 86.92 | 84.38 | 86.11 | +1.00% | |
| 84.38 | 85.78 | 83.75 | 85.26 | +0.73% | |
| 84.29 | 85.34 | 82.98 | 84.64 | -0.72% | |
| 86.29 | 87.04 | 84.37 | 85.25 | -1.32% | |
| 86.46 | 87.90 | 85.75 | 86.39 | -0.51% | |
| 86.31 | 87.93 | 85.89 | 86.83 | +0.52% | |
| 87.50 | 88.99 | 86.34 | 86.38 | -0.52% | |
| 87.50 | 87.81 | 86.08 | 86.83 | -0.96% | |
| 87.45 | 88.70 | 87.14 | 87.67 | -0.16% | |
| 86.91 | 89.37 | 86.39 | 87.81 | -1.08% | |
| 88.77 | 89.39 | 88.06 | 88.77 | +0.19% | |
| 88.76 | 89.98 | 87.14 | 88.60 | +0.57% | |
| 88.73 | 89.13 | 86.54 | 88.10 | -0.45% | |
| 88.47 | 89.49 | 87.75 | 88.50 | -0.18% | |
| 91.23 | 91.23 | 88.15 | 88.66 | -3.06% | |
| 90.22 | 93.18 | 88.57 | 91.46 | +3.24% | |
| 91.19 | 91.53 | 88.33 | 88.59 | -3.21% | |
| 93.65 | 94.39 | 91.50 | 91.53 | -0.80% | |
| 97.34 | 98.30 | 92.22 | 92.27 | -4.42% | |
| 99.02 | 99.51 | 96.44 | 96.54 | -1.05% | |
| 94.88 | 98.95 | 93.86 | 97.56 | +3.95% | |
| 97.88 | 98.47 | 93.42 | 93.85 | -3.62% | |
| 98.95 | 100.05 | 97.10 | 97.38 | -2.54% | |
| 99.48 | 102.57 | 98.66 | 99.92 | -4.64% | |
| 102.70 | 106.93 | 101.23 | 104.78 | -8.78% | |
| 115.52 | 116.26 | 112.40 | 114.87 | -0.10% | |
| 115.75 | 117.05 | 114.78 | 114.99 | -0.25% | |
| 111.49 | 115.71 | 111.19 | 115.28 | +3.47% | |
| 112.09 | 112.48 | 110.48 | 111.41 | +0.96% | |
| 112.41 | 112.86 | 109.14 | 110.35 | -0.76% | |
| 111.91 | 113.66 | 109.42 | 111.19 | +0.50% | |
| 112.00 | 113.49 | 109.68 | 110.64 | -1.43% | |
| 114.35 | 115.60 | 110.58 | 112.25 | -1.78% | |
| 117.47 | 117.66 | 113.50 | 114.28 | -1.18% | |
| 112.93 | 115.88 | 112.15 | 115.65 | +1.55% | |
| 111.72 | 115.60 | 111.72 | 113.88 | +1.13% | |
| 114.00 | 114.51 | 110.79 | 112.61 | -5.37% | |
| 116.73 | 119.23 | 116.41 | 119.00 | +3.25% | |
| 118.13 | 118.41 | 114.43 | 115.25 | -2.27% | |
| 119.49 | 119.97 | 115.01 | 117.93 | -1.85% | |
| 120.00 | 121.94 | 118.50 | 120.15 | +1.50% | |
| 118.97 | 120.95 | 117.50 | 118.37 | +0.99% | |
| 120.99 | 122.53 | 116.26 | 117.21 | -2.98% | |
| 114.25 | 120.88 | 113.33 | 120.81 | -2.09% | |
| 120.52 | 124.23 | 119.44 | 123.39 | +3.23% | |
| 117.61 | 119.60 | 116.37 | 119.53 | +0.11% | |
| 116.60 | 120.00 | 114.49 | 119.40 | +2.42% | |
| 117.00 | 119.35 | 115.43 | 116.58 | -0.21% | |
| 116.75 | 119.69 | 114.47 | 116.82 | +0.71% | |
| 115.11 | 117.17 | 113.59 | 116.00 | +2.39% | |
| 111.80 | 114.44 | 111.80 | 113.29 | -0.15% | |
| 113.63 | 115.94 | 112.56 | 113.46 | -0.67% | |
| 114.41 | 116.19 | 113.23 | 114.22 | +0.11% | |
| 107.94 | 115.13 | 107.07 | 114.09 | +5.15% | |
| 107.79 | 111.47 | 107.00 | 108.50 | +2.24% | |
| 111.80 | 112.41 | 105.48 | 106.12 | -4.59% | |
| 110.89 | 112.67 | 109.40 | 111.23 | -1.22% | |
| 113.12 | 115.78 | 112.56 | 112.60 | +1.04% | |
| 111.25 | 114.97 | 110.18 | 111.44 | +0.59% | |
| 111.25 | 113.10 | 110.00 | 110.79 | -1.12% | |
| 115.00 | 116.46 | 111.50 | 112.04 | -1.91% | |
| 107.24 | 114.65 | 107.24 | 114.22 | +6.72% | |
| 104.75 | 107.68 | 103.54 | 107.03 | +1.89% | |
| 104.81 | 107.74 | 103.86 | 105.04 | -1.22% | |
| 102.18 | 107.45 | 100.54 | 106.34 | +3.05% | |
| 104.00 | 106.10 | 99.34 | 103.19 | -2.20% | |
| 107.50 | 112.21 | 104.84 | 105.51 | -0.58% | |
| 105.31 | 106.39 | 101.67 | 106.13 | +3.12% | |
| 103.49 | 104.86 | 99.60 | 102.92 | -3.62% | |
| 103.32 | 108.88 | 102.70 | 106.79 | +1.34% | |
| 98.20 | 106.00 | 97.90 | 105.38 | +5.02% | |
| 102.57 | 103.67 | 99.11 | 100.34 | -2.67% | |
| 106.36 | 106.66 | 101.56 | 103.09 | -1.04% | |
| 102.72 | 107.99 | 97.83 | 104.17 | +11.99% | |
| 93.84 | 95.23 | 91.76 | 93.02 | -1.46% | |
| 94.10 | 96.26 | 92.69 | 94.40 | -0.69% | |
| 98.54 | 100.00 | 93.10 | 95.06 | -4.49% | |
| 98.95 | 100.77 | 97.52 | 99.53 | +1.75% | |
| 99.58 | 101.30 | 96.48 | 97.82 | -2.26% | |
| 98.50 | 101.35 | 97.31 | 100.08 | +1.37% | |
| 100.69 | 103.00 | 96.68 | 98.73 | -1.62% | |
| 98.56 | 102.98 | 98.56 | 100.36 | +1.25% | |
| 97.03 | 100.24 | 96.34 | 99.12 | +2.74% | |
| 94.10 | 96.60 | 93.55 | 96.48 | +0.57% | |
| 94.09 | 96.31 | 93.18 | 95.93 | +4.08% | |
| 94.17 | 95.25 | 90.32 | 92.17 | -3.99% | |
| 93.05 | 98.06 | 93.05 | 96.00 | +5.61% | |
| 84.53 | 91.59 | 84.52 | 90.90 | +8.51% | |
| 79.89 | 84.27 | 78.61 | 83.77 | +5.61% | |
| 80.58 | 82.05 | 77.58 | 79.32 | -2.75% | |
| 82.10 | 82.69 | 78.44 | 81.56 | -0.39% | |
| 82.49 | 83.00 | 80.99 | 81.88 | +0.24% | |
| 83.52 | 84.55 | 81.65 | 81.68 | -2.95% | |
| 85.59 | 85.95 | 83.49 | 84.16 | -1.24% | |
| 86.90 | 87.39 | 85.08 | 85.22 | -1.76% | |
| 87.09 | 89.85 | 86.20 | 86.75 | +0.08% | |
| 84.99 | 87.97 | 84.32 | 86.68 | +3.29% | |
| 86.30 | 86.30 | 83.30 | 83.92 | -4.50% | |
| 86.63 | 88.88 | 86.63 | 87.87 | -0.49% | |
| 90.82 | 91.08 | 86.27 | 88.30 | -1.73% | |
| 85.63 | 90.19 | 85.07 | 89.85 | +5.71% | |
| 85.72 | 86.48 | 84.48 | 85.00 | +0.07% | |
| 83.00 | 85.13 | 82.63 | 84.94 | +2.09% | |
| 79.90 | 83.30 | 78.42 | 83.20 | +4.61% | |
| 73.86 | 81.55 | 73.50 | 79.53 | +6.79% | |
| 77.86 | 78.63 | 73.95 | 74.47 | -3.82% | |
| 74.90 | 78.34 | 74.39 | 77.43 | +3.27% | |
| 73.90 | 77.33 | 73.90 | 74.98 | +1.12% | |
| 74.57 | 75.17 | 72.69 | 74.15 | +0.28% | |
| 74.81 | 75.22 | 73.50 | 73.94 | -1.26% | |
| 74.42 | 75.45 | 74.29 | 74.88 | +0.67% | |
| 73.01 | 74.68 | 72.96 | 74.38 | +0.85% | |
| 73.63 | 74.01 | 73.18 | 73.75 | +0.10% | |
| 73.61 | 74.12 | 72.84 | 73.68 | +0.53% | |
| 74.04 | 74.33 | 71.87 | 73.29 | -1.48% | |
| 72.57 | 74.60 | 72.26 | 74.39 | +2.62% | |
| 75.44 | 75.44 | 71.79 | 72.49 | -3.06% | |
| 74.40 | 75.66 | 73.34 | 74.78 | +1.08% | |
| 73.20 | 75.44 | 73.08 | 73.98 | +0.87% | |
| 73.00 | 74.42 | 72.06 | 73.34 | -0.39% | |
| 76.02 | 76.33 | 71.27 | 73.63 | -1.03% | |
| 75.28 | 75.40 | 73.61 | 74.40 | -0.69% | |
| 72.61 | 75.09 | 72.23 | 74.92 | +3.01% | |
| 68.67 | 72.85 | 68.26 | 72.73 | +6.27% | |
| 68.69 | 71.03 | 68.42 | 68.44 | +1.21% | |
| 67.80 | 69.13 | 66.92 | 67.62 | -0.59% | |
| 68.24 | 70.34 | 67.53 | 68.02 | +0.07% | |
| 68.66 | 69.17 | 67.28 | 67.97 | -1.08% | |
| 66.70 | 70.31 | 66.45 | 68.71 | +3.17% | |
| 67.52 | 67.73 | 66.09 | 66.60 | -1.46% | |
| 65.50 | 70.06 | 65.50 | 67.59 | +1.17% | |
| 64.71 | 66.97 | 64.66 | 66.81 | +3.23% | |
| 62.84 | 65.22 | 62.78 | 64.72 | +2.94% | |
| 60.88 | 63.55 | 60.70 | 62.87 | +3.71% | |
| 58.86 | 61.04 | 58.62 | 60.62 | +2.69% | |
| 56.90 | 60.92 | 56.83 | 59.03 | +4.70% | |
| 57.88 | 59.37 | 56.33 | 56.38 | -1.95% | |
| 58.34 | 58.84 | 56.85 | 57.50 | -1.96% | |
| 59.05 | 59.68 | 57.43 | 58.65 | -0.68% | |
| 62.56 | 62.77 | 58.58 | 59.05 | -5.61% | |
| 64.26 | 64.26 | 62.39 | 62.56 | -3.62% | |
| 62.69 | 65.68 | 62.69 | 64.91 | +3.34% | |
| 63.45 | 64.58 | 62.30 | 62.81 | -1.01% | |
| 65.81 | 66.28 | 62.94 | 63.45 | -2.65% | |
| 65.85 | 65.85 | 64.21 | 65.18 | +0.35% | |
| 64.00 | 65.53 | 63.89 | 64.95 | +0.76% | |
| 65.92 | 66.30 | 64.33 | 64.46 | -2.13% | |
| 66.54 | 67.50 | 65.38 | 65.86 | -1.38% | |
| 67.46 | 68.19 | 66.76 | 66.78 | -2.20% | |
| 69.00 | 70.62 | 67.87 | 68.28 | -0.77% | |
| 67.91 | 69.52 | 67.33 | 68.81 | +0.76% | |
| 69.52 | 72.82 | 65.77 | 68.29 | -7.05% | |
| 76.64 | 76.64 | 73.12 | 73.47 | -3.89% | |
| 77.84 | 78.87 | 75.80 | 76.44 | -4.13% | |
| 79.57 | 80.04 | 79.20 | 79.73 | +0.64% | |
| 79.65 | 80.28 | 78.90 | 79.22 | +0.55% | |
| 78.13 | 79.24 | 76.60 | 78.79 | +4.57% | |
| 76.52 | 77.69 | 75.08 | 75.35 | -2.02% | |
| 75.34 | 77.04 | 74.58 | 76.90 | +2.00% | |
| 75.83 | 76.20 | 74.91 | 75.39 | +0.19% | |
| 76.00 | 76.20 | 74.70 | 75.25 | -1.05% | |
| 77.62 | 77.89 | 75.36 | 76.05 | -1.66% | |
| 78.23 | 79.08 | 77.09 | 77.33 | -0.59% | |
| 75.10 | 78.04 | 74.29 | 77.79 | +0.08% | |
| 76.71 | 78.54 | 76.30 | 77.73 | +2.76% | |
| 81.20 | 81.70 | 75.49 | 75.64 | -6.29% | |
| 82.50 | 83.00 | 80.08 | 80.72 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the WLK chart for longer ranges.