Westlake Chemical Corp. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-07-30 | 72.530 | 72.550 | 71.090 | 71.360 | 70.862 | 4 |
| 2026-07-29 | 74.350 | 74.350 | 71.411 | 71.411 | 70.913 | 18 |
| 2026-07-28 | 73.500 | 73.500 | 73.047 | 73.047 | 72.537 | 11 |
| 2026-07-27 | 73.970 | 73.970 | 72.690 | 72.868 | 72.360 | 92 |
| 2026-07-24 | 74.247 | 74.247 | 73.605 | 73.920 | 73.404 | 116 |
| 2026-07-23 | 76.460 | 76.460 | 76.460 | 76.460 | 75.926 | 25 |
| 2026-07-22 | 76.550 | 78.130 | 76.420 | 76.420 | 75.887 | 5 |
| 2026-07-21 | 78.500 | 78.500 | 76.320 | 76.320 | 75.787 | 2 |
| 2026-07-20 | 78.620 | 78.620 | 76.790 | 77.240 | 76.701 | 4 |
| 2026-07-17 | 77.860 | 80.000 | 77.475 | 77.475 | 76.934 | 41 |
| 2026-07-16 | 76.571 | 77.688 | 76.571 | 77.540 | 76.999 | 45 |
| 2026-07-15 | 76.070 | 76.350 | 76.070 | 76.350 | 75.817 | 5 |
| 2026-07-14 | 78.100 | 78.100 | 75.405 | 76.395 | 75.862 | 403 |
| 2026-07-13 | 75.100 | 77.780 | 75.100 | 75.520 | 74.993 | 42 |
| 2026-07-10 | 75.940 | 75.940 | 75.236 | 75.236 | 74.711 | 1 |
| 2026-07-08 | 77.820 | 77.820 | 77.222 | 77.222 | 76.683 | 6 |
| 2026-07-07 | 76.000 | 77.760 | 76.000 | 76.270 | 75.738 | 9 |
| 2026-07-06 | 75.280 | 75.280 | 72.850 | 74.850 | 74.328 | 5 |
| 2026-07-02 | 73.800 | 74.670 | 71.390 | 74.162 | 73.645 | 23 |
| 2026-07-01 | 71.940 | 71.940 | 71.730 | 71.730 | 71.229 | 2 |
| 2026-06-30 | 76.260 | 76.260 | 73.010 | 73.010 | 72.501 | 12 |
| 2026-06-29 | 77.570 | 77.570 | 73.890 | 74.570 | 74.050 | 678 |
| 2026-06-26 | 76.800 | 77.150 | 76.340 | 76.340 | 75.807 | 4 |
| 2026-06-25 | 77.570 | 77.570 | 74.240 | 76.770 | 76.234 | 4 |
| 2026-06-24 | 76.020 | 76.720 | 74.320 | 74.470 | 73.950 | 62 |
| 2026-06-23 | 77.980 | 77.990 | 77.495 | 77.630 | 77.088 | 273 |
| 2026-06-22 | 80.980 | 80.980 | 78.270 | 78.270 | 77.724 | 32 |
| 2026-06-18 | 83.210 | 83.210 | 81.574 | 81.890 | 81.319 | 93 |
| 2026-06-17 | 85.410 | 85.968 | 85.410 | 85.968 | 85.368 | 22 |
| 2026-06-16 | 84.220 | 84.610 | 84.220 | 84.570 | 83.980 | 1 |
| 2026-06-15 | 87.640 | 89.090 | 85.440 | 88.310 | 87.694 | 2 |
| 2026-06-12 | 89.500 | 89.500 | 88.760 | 88.959 | 88.338 | 20 |
| 2026-06-11 | 86.890 | 89.010 | 86.300 | 88.590 | 87.972 | 29 |
| 2026-06-10 | 84.630 | 88.852 | 84.630 | 88.852 | 88.232 | 29 |
| 2026-06-09 | 85.200 | 85.270 | 85.180 | 85.270 | 84.675 | 31 |
| 2026-06-08 | 85.620 | 85.620 | 84.330 | 85.240 | 84.645 | 3 |
| 2026-06-05 | 85.490 | 85.490 | 83.180 | 83.180 | 82.600 | 4 |
| 2026-06-04 | 87.500 | 87.720 | 84.990 | 85.040 | 84.447 | 18 |
| 2026-06-03 | 88.260 | 88.260 | 86.085 | 86.160 | 85.559 | 124 |
| 2026-06-02 | 87.300 | 89.000 | 86.030 | 86.894 | 86.287 | 36 |
| 2026-06-01 | 87.500 | 88.250 | 86.960 | 87.230 | 86.621 | 3 |
| 2026-05-29 | 87.700 | 87.700 | 86.900 | 87.120 | 86.512 | 5 |
| 2026-05-28 | 89.440 | 89.440 | 87.660 | 88.385 | 87.768 | 5 |
| 2026-05-27 | 86.521 | 88.970 | 85.730 | 88.390 | 87.773 | 12 |
| 2026-05-26 | 88.290 | 89.150 | 86.630 | 89.150 | 88.002 | 102 |
| 2026-05-22 | 90.420 | 90.420 | 87.480 | 87.810 | 86.679 | 10 |
| 2026-05-21 | 89.420 | 89.420 | 87.460 | 88.160 | 87.024 | 605 |
| 2026-05-20 | 87.170 | 89.600 | 87.170 | 88.590 | 87.449 | 112 |
| 2026-05-19 | 89.440 | 89.440 | 88.730 | 89.370 | 88.219 | 4 |
| 2026-05-18 | 88.950 | 92.470 | 88.950 | 92.470 | 91.279 | 103 |
| 2026-05-15 | 90.000 | 92.410 | 89.001 | 89.001 | 87.855 | 63 |
| 2026-05-14 | 93.830 | 94.330 | 92.270 | 93.390 | 92.187 | 16 |
| 2026-05-13 | 96.570 | 99.150 | 94.630 | 94.630 | 93.411 | 116 |
| 2026-05-12 | 95.000 | 99.500 | 95.000 | 97.875 | 96.614 | 106 |
| 2026-05-11 | 91.800 | 98.100 | 91.800 | 98.100 | 96.836 | 104 |
| 2026-05-08 | 97.760 | 97.760 | 94.040 | 94.510 | 93.293 | 106 |
| 2026-05-07 | 101.55 | 101.55 | 97.170 | 98.434 | 97.166 | 26 |
| 2026-05-06 | 99.860 | 103.20 | 97.450 | 101.66 | 100.35 | 612 |
| 2026-05-05 | 104.00 | 105.99 | 99.750 | 105.41 | 104.05 | 554 |
| 2026-05-01 | 115.45 | 117.65 | 115.20 | 116.28 | 114.78 | 75 |
Stock splits
No stock splits on record.
Dividends
| Ex-date | Amount |
|---|---|
| 2026-08-25 | 0.5330 USD |
| 2026-05-27 | 0.5300 USD |
| 2026-03-02 | 0.5300 USD |
| 2025-11-24 | 0.5300 USD |
| 2025-08-18 | 0.5300 USD |
| 2025-05-20 | 0.5250 USD |
| 2025-03-03 | 0.5250 USD |
| 2024-11-26 | 0.5250 USD |
| 2024-08-20 | 0.5250 USD |
| 2024-05-20 | 0.5000 USD |
| 2024-02-27 | 0.5000 USD |
| 2023-11-20 | 0.5000 USD |
| 2023-08-24 | 0.5000 USD |
| 2023-05-22 | 0.3570 USD |
| 2023-02-28 | 0.3570 USD |
| 2022-11-23 | 0.3570 USD |
| 2022-08-19 | 0.3570 USD |
| 2022-05-20 | 0.2975 USD |
| 2022-02-28 | 0.2975 USD |
| 2021-11-22 | 0.2975 USD |
| 2021-08-23 | 0.2975 USD |
| 2021-05-24 | 0.2700 USD |
| 2021-03-01 | 0.2700 USD |
| 2020-11-23 | 0.2700 USD |
| 2020-08-24 | 0.2700 USD |
| 2020-05-22 | 0.2625 USD |
| 2020-02-24 | 0.2625 USD |
| 2019-11-25 | 0.2625 USD |
| 2019-08-26 | 0.2625 USD |
| 2019-05-28 | 0.2500 USD |
| 2019-02-26 | 0.2500 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.