5 DAY PERFORMANCE
+50.59%
1 MONTH PERFORMANCE
+34.82%
3 MONTH PERFORMANCE
+32.55%
6 MONTH PERFORMANCE
+0.27%
YEAR-TO-DATE PERFORMANCE
+43.91%
1 YEAR PERFORMANCE
+28.10%
Westlake Corporation Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 09/21/2026 | $69.40 | $68.74 (-0.95%) | $69.42 | $67.80 | 171.39 K | $8.77 B |
| 09/18/2026 | $70.03 | $69.07 (-1.37%) | $70.07 | $68.74 | 721.40 K | $8.84 B |
| 09/17/2026 | $71.26 | $70.57 (-0.97%) | $71.62 | $69.83 | 485.10 K | $9.04 B |
| 09/16/2026 | $69.81 | $70.66 (1.22%) | $71.63 | $69.39 | 537.40 K | $9.05 B |
| 09/15/2026 | $68.84 | $70.02 (1.71%) | $70.18 | $68.55 | 864.51 K | $8.97 B |
| 09/14/2026 | $71.05 | $68.96 (-2.94%) | $72.48 | $68.63 | 976.51 K | $8.83 B |
| 09/11/2026 | $71.94 | $70.81 (-1.57%) | $72.50 | $70.44 | 533.80 K | $9.07 B |
| 09/10/2026 | $71.87 | $71.62 (-0.35%) | $73.75 | $70.69 | 891.90 K | $9.17 B |
| 09/09/2026 | $72.70 | $71.78 (-1.27%) | $73.39 | $70.74 | 846.70 K | $9.19 B |
| 09/08/2026 | $75.56 | $74.75 (-1.07%) | $76.14 | $74.63 | 561.12 K | $9.57 B |
| 09/04/2026 | $74.05 | $74.79 (1%) | $75.56 | $73.73 | 570.45 K | $9.58 B |
| 09/03/2026 | $77.19 | $74.60 (-3.36%) | $77.44 | $74.51 | 595.00 K | $9.55 B |
| 09/02/2026 | $73.60 | $76.27 (3.63%) | $76.82 | $73.60 | 737.25 K | $9.77 B |
| 09/01/2026 | $75.02 | $74.23 (-1.05%) | $75.59 | $73.44 | 577.00 K | $9.50 B |
| 08/31/2026 | $76.05 | $75.07 (-1.29%) | $76.52 | $74.28 | 561.71 K | $9.61 B |
| 08/28/2026 | $74.72 | $75.71 (1.32%) | $76.02 | $73.92 | 750.80 K | $9.69 B |
| 08/27/2026 | $74.22 | $73.93 (-0.39%) | $74.78 | $72.91 | 586.22 K | $9.47 B |
| 08/26/2026 | $74.47 | $74.61 (0.19%) | $74.93 | $72.90 | 819.34 K | $9.55 B |
| 08/25/2026 | $75.52 | $74.80 (-0.95%) | $75.67 | $74.60 | 536.50 K | $9.58 B |
| 08/24/2026 | $78.67 | $76.49 (-2.77%) | $79.18 | $76.19 | 630.40 K | $9.79 B |
| 08/21/2026 | $79.13 | $78.93 (-0.25%) | $80.09 | $78.81 | 746.21 K | $10.11 B |
| 08/20/2026 | $78.58 | $78.85 (0.34%) | $80.19 | $78.01 | 681.44 K | $10.10 B |
| 08/19/2026 | $78.39 | $79.45 (1.35%) | $80.58 | $77.66 | 772.20 K | $10.17 B |
| 08/18/2026 | $78.28 | $77.52 (-0.97%) | $79.04 | $76.45 | 865.10 K | $9.93 B |
| 08/17/2026 | $79.05 | $78.21 (-1.06%) | $79.50 | $77.31 | 943.23 K | $10.01 B |
| 08/14/2026 | $80.66 | $79.55 (-1.38%) | $80.86 | $79.37 | 834.15 K | $10.19 B |
| 08/13/2026 | $78.49 | $80.19 (2.17%) | $80.35 | $78.00 | 617.88 K | $10.27 B |
| 08/12/2026 | $80.38 | $79.17 (-1.51%) | $80.41 | $78.03 | 734.24 K | $10.14 B |
| 08/11/2026 | $78.82 | $80.84 (2.56%) | $80.98 | $78.82 | 1.02 M | $10.35 B |
| 08/10/2026 | $77.26 | $79.09 (2.37%) | $79.31 | $76.61 | 1.30 M | $10.13 B |
| 08/07/2026 | $76.95 | $77.47 (0.68%) | $79.15 | $76.33 | 918.80 K | $9.92 B |
| 08/06/2026 | $79.77 | $77.47 (-2.88%) | $80.57 | $77.35 | 906.62 K | $9.92 B |
| 08/05/2026 | $79.42 | $78.74 (-0.86%) | $79.77 | $75.48 | 1.79 M | $10.08 B |
| 08/04/2026 | $72.86 | $80.63 (10.66%) | $80.64 | $72.72 | 3.01 M | $10.32 B |
| 08/03/2026 | $70.16 | $69.89 (-0.38%) | $71.00 | $68.70 | 2.22 M | $8.95 B |
| 07/31/2026 | $71.03 | $70.50 (-0.75%) | $71.50 | $68.48 | 1.50 M | $9.03 B |
| 07/30/2026 | $72.52 | $71.72 (-1.1%) | $72.89 | $70.98 | 1.38 M | $9.18 B |
| 07/29/2026 | $72.88 | $72.25 (-0.86%) | $73.01 | $71.26 | 1.40 M | $9.25 B |
| 07/28/2026 | $73.17 | $72.16 (-1.38%) | $74.32 | $71.89 | 894.90 K | $9.24 B |
| 07/27/2026 | $73.22 | $72.33 (-1.22%) | $73.54 | $71.86 | 1.34 M | $9.26 B |
| 07/24/2026 | $75.10 | $73.82 (-1.7%) | $75.10 | $73.44 | 1.20 M | $9.45 B |
| 07/23/2026 | $78.17 | $75.23 (-3.76%) | $78.33 | $74.70 | 772.14 K | $9.63 B |
| 07/22/2026 | $76.98 | $77.06 (0.1%) | $77.99 | $76.14 | 895.41 K | $9.86 B |
| 07/21/2026 | $77.26 | $76.22 (-1.35%) | $77.35 | $75.34 | 908.30 K | $9.76 B |
| 07/20/2026 | $77.08 | $76.91 (-0.22%) | $77.69 | $76.00 | 542.10 K | $9.84 B |
| 07/17/2026 | $78.20 | $77.63 (-0.73%) | $79.84 | $77.08 | 592.00 K | $9.94 B |
| 07/16/2026 | $76.47 | $77.08 (0.8%) | $78.17 | $76.44 | 549.90 K | $9.87 B |
| 07/15/2026 | $76.50 | $77.05 (0.72%) | $77.61 | $76.07 | 589.11 K | $9.86 B |
| 07/14/2026 | $77.10 | $77.04 (-0.08%) | $78.00 | $75.28 | 759.70 K | $9.86 B |
| 07/13/2026 | $76.71 | $76.07 (-0.83%) | $78.07 | $75.29 | 941.93 K | $9.74 B |
| 07/10/2026 | $75.30 | $75.49 (0.25%) | $75.76 | $74.67 | 774.14 K | $9.66 B |
| 07/09/2026 | $75.22 | $74.48 (-0.98%) | $76.26 | $74.28 | 878.00 K | $9.53 B |
| 07/08/2026 | $77.72 | $75.80 (-2.47%) | $78.60 | $75.76 | 1.40 M | $9.70 B |
| 07/07/2026 | $75.04 | $76.27 (1.64%) | $77.13 | $74.82 | 1.84 M | $9.76 B |
| 07/06/2026 | $73.95 | $74.80 (1.15%) | $75.27 | $72.71 | 1.37 M | $9.57 B |
| 07/02/2026 | $72.88 | $74.77 (2.59%) | $75.13 | $72.88 | 1.38 M | $9.57 B |
| 07/01/2026 | $71.86 | $72.82 (1.34%) | $74.26 | $71.23 | 1.84 M | $9.32 B |
| 06/30/2026 | $74.68 | $73.00 (-2.25%) | $75.21 | $72.71 | 1.04 M | $9.34 B |
| 06/29/2026 | $76.44 | $74.72 (-2.25%) | $76.53 | $73.73 | 1.32 M | $9.56 B |
| 06/26/2026 | $76.00 | $76.62 (0.82%) | $77.18 | $75.58 | 1.57 M | $9.81 B |
| 06/25/2026 | $75.25 | $76.54 (1.71%) | $76.81 | $74.66 | 1.89 M | $9.80 B |
| 06/24/2026 | $75.74 | $75.87 (0.17%) | $76.67 | $73.77 | 2.04 M | $9.71 B |
| 06/23/2026 | $77.37 | $76.48 (-1.15%) | $78.32 | $76.26 | 988.31 K | $9.79 B |
| 06/22/2026 | $79.29 | $77.95 (-1.69%) | $79.69 | $77.27 | 1.03 M | $9.98 B |
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