Westlake Chemical Corp. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-10-23 | 64.400 | 65.310 | 62.350 | 63.990 | 63.990 | 199 |
| 2026-10-22 | 61.485 | 63.385 | 60.660 | 62.910 | 62.910 | 1,452 |
| 2026-10-21 | 61.030 | 61.170 | 60.610 | 60.639 | 60.639 | 507 |
| 2026-10-20 | 62.290 | 63.270 | 62.290 | 62.650 | 62.650 | 2 |
| 2026-10-19 | 63.200 | 63.460 | 62.210 | 62.210 | 62.210 | 9 |
| 2026-10-16 | 64.200 | 65.920 | 62.730 | 62.730 | 62.730 | 111 |
| 2026-10-15 | 62.670 | 64.050 | 62.670 | 63.847 | 63.847 | 67 |
| 2026-10-14 | 62.580 | 62.580 | 62.580 | 62.580 | 62.580 | 2 |
| 2026-10-13 | 61.760 | 62.880 | 61.760 | 62.040 | 62.040 | 24 |
| 2026-10-12 | 61.490 | 62.280 | 61.185 | 61.185 | 61.185 | 42 |
| 2026-10-09 | 62.490 | 62.490 | 62.076 | 62.360 | 62.360 | 48 |
| 2026-10-08 | 60.800 | 61.688 | 60.800 | 61.688 | 61.688 | 20 |
| 2026-10-07 | 63.450 | 63.450 | 59.980 | 59.980 | 59.980 | 32 |
| 2026-10-06 | 65.930 | 65.930 | 63.705 | 64.160 | 64.160 | 10 |
| 2026-10-05 | 64.990 | 65.760 | 62.280 | 65.760 | 65.760 | 1 |
| 2026-10-02 | 64.280 | 64.792 | 62.470 | 64.538 | 64.538 | 127 |
| 2026-10-01 | 61.530 | 62.520 | 59.020 | 60.910 | 60.910 | 38 |
| 2026-09-30 | 62.900 | 63.200 | 62.500 | 62.690 | 62.690 | 33 |
| 2026-09-29 | 64.560 | 66.220 | 63.740 | 63.760 | 63.760 | 2 |
| 2026-09-28 | 67.270 | 67.270 | 66.480 | 66.480 | 66.480 | 2 |
| 2026-09-25 | 66.470 | 67.230 | 66.470 | 67.070 | 67.070 | 12 |
| 2026-09-24 | 69.390 | 69.390 | 69.390 | 69.390 | 69.390 | 0 |
| 2026-09-23 | 69.580 | 69.580 | 69.293 | 69.293 | 69.293 | 5 |
| 2026-09-22 | 67.460 | 70.050 | 67.460 | 69.376 | 69.376 | 155 |
| 2026-09-21 | 70.430 | 70.430 | 67.851 | 68.390 | 68.390 | 78 |
| 2026-09-18 | 70.000 | 70.000 | 68.310 | 69.130 | 69.130 | 6 |
| 2026-09-17 | 70.440 | 71.130 | 70.440 | 71.130 | 71.130 | 36 |
| 2026-09-16 | 70.900 | 70.900 | 70.530 | 70.530 | 70.530 | 2 |
| 2026-09-15 | 69.260 | 70.100 | 68.010 | 69.790 | 69.790 | 39 |
| 2026-09-14 | 69.000 | 72.500 | 69.000 | 70.530 | 70.530 | 63 |
| 2026-09-11 | 72.260 | 72.260 | 72.260 | 72.260 | 72.260 | 0 |
| 2026-09-10 | 71.700 | 72.230 | 71.260 | 72.230 | 72.230 | 39 |
| 2026-09-09 | 72.426 | 72.710 | 71.480 | 72.200 | 72.200 | 189 |
| 2026-09-08 | 75.630 | 75.630 | 75.380 | 75.380 | 75.380 | 2 |
| 2026-09-04 | 74.000 | 75.580 | 74.000 | 75.310 | 75.310 | 3 |
| 2026-09-03 | 77.000 | 77.210 | 75.300 | 75.300 | 75.300 | 5 |
| 2026-09-02 | 75.120 | 76.440 | 75.120 | 76.440 | 76.440 | 6 |
| 2026-09-01 | 74.000 | 77.730 | 73.751 | 73.870 | 73.870 | 115 |
| 2026-08-31 | 74.970 | 76.250 | 74.506 | 74.506 | 74.506 | 450 |
| 2026-08-28 | 74.510 | 75.430 | 74.510 | 75.120 | 75.120 | 3 |
| 2026-08-27 | 74.300 | 74.300 | 72.900 | 73.960 | 73.960 | 5 |
| 2026-08-26 | 75.200 | 75.800 | 72.990 | 73.830 | 73.830 | 75 |
| 2026-08-25 | 76.000 | 76.000 | 74.000 | 75.320 | 75.320 | 293 |
| 2026-08-24 | 78.660 | 79.080 | 76.380 | 76.380 | 75.847 | 12 |
| 2026-08-21 | 78.240 | 80.200 | 78.240 | 79.890 | 79.333 | 103 |
| 2026-08-20 | 77.370 | 80.120 | 77.370 | 79.530 | 78.975 | 7 |
| 2026-08-19 | 79.010 | 81.160 | 77.500 | 79.800 | 79.243 | 24 |
| 2026-08-18 | 77.140 | 77.140 | 76.520 | 77.020 | 76.483 | 58 |
| 2026-08-17 | 81.010 | 81.010 | 77.390 | 77.690 | 77.148 | 29 |
| 2026-08-14 | 81.010 | 82.530 | 79.000 | 79.356 | 78.802 | 230 |
| 2026-08-13 | 79.940 | 81.450 | 78.594 | 79.900 | 79.342 | 15 |
| 2026-08-12 | 80.620 | 80.620 | 78.040 | 78.400 | 77.853 | 17 |
| 2026-08-11 | 79.650 | 81.450 | 79.650 | 80.190 | 79.630 | 73 |
| 2026-08-10 | 77.190 | 78.160 | 77.158 | 78.075 | 77.530 | 18 |
| 2026-08-07 | 77.700 | 78.910 | 77.190 | 78.240 | 77.694 | 38 |
| 2026-08-06 | 77.980 | 79.990 | 77.980 | 79.250 | 78.697 | 55 |
| 2026-08-05 | 80.303 | 80.303 | 75.530 | 77.910 | 77.366 | 2,264 |
| 2026-08-04 | 71.000 | 78.920 | 71.000 | 78.920 | 78.369 | 1,289 |
| 2026-08-03 | 72.000 | 72.000 | 69.200 | 69.210 | 68.727 | 13 |
| 2026-07-31 | 69.960 | 70.566 | 69.310 | 70.566 | 70.074 | 23 |
Page 1 of 4 · 234 trading daysOlder →
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.