Westlake Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jul 13, 2026	76.71	78.07	75.29	76.07	76.07	0.77%	941,882
Jul 10, 2026	75.30	75.76	74.67	75.49	75.49	1.36%	774,136
Jul 9, 2026	75.22	76.26	74.28	74.48	74.48	-1.74%	869,471
Jul 8, 2026	77.72	78.60	75.76	75.80	75.80	-0.62%	1,401,467
Jul 7, 2026	75.04	77.13	74.82	76.27	76.27	1.97%	1,836,081
Jul 6, 2026	73.95	75.27	72.71	74.80	74.80	0.04%	1,366,672
Jul 2, 2026	72.88	75.13	72.88	74.77	74.77	2.68%	1,381,639
Jul 1, 2026	71.86	74.26	71.23	72.82	72.82	-0.25%	1,844,472
Jun 30, 2026	74.68	75.21	72.71	73.00	73.00	-2.30%	1,039,688
Jun 29, 2026	76.44	76.53	73.73	74.72	74.72	-2.48%	1,322,215
Jun 26, 2026	76.00	77.18	75.58	76.62	76.62	0.10%	1,566,645
Jun 25, 2026	75.25	76.81	74.66	76.54	76.54	0.88%	1,863,373
Jun 24, 2026	75.74	76.67	73.77	75.87	75.87	-0.80%	1,890,919
Jun 23, 2026	77.37	78.32	76.26	76.48	76.48	-1.89%	988,310
Jun 22, 2026	79.29	79.70	77.27	77.95	77.95	-2.90%	1,025,440
Jun 18, 2026	82.94	83.09	80.09	80.28	80.28	-3.83%	1,726,759
Jun 17, 2026	83.67	87.27	83.23	83.48	83.48	-1.01%	736,411
Jun 16, 2026	86.89	87.66	83.92	84.33	84.33	-3.57%	1,121,500
Jun 15, 2026	87.65	88.76	86.16	87.45	87.45	-1.19%	620,332
Jun 12, 2026	87.45	89.47	86.53	88.50	88.50	1.41%	770,631
Jun 11, 2026	88.43	89.23	86.43	87.27	87.27	0.17%	531,732
Jun 10, 2026	86.50	88.99	85.81	87.12	87.12	1.17%	1,179,216
Jun 9, 2026	85.63	86.92	84.38	86.11	86.11	1.00%	1,184,082
Jun 8, 2026	84.38	85.78	83.75	85.26	85.26	0.73%	914,802
Jun 5, 2026	84.29	85.34	82.98	84.64	84.64	-0.72%	792,745
Jun 4, 2026	86.29	87.04	84.37	85.25	85.25	-1.32%	736,343
Jun 3, 2026	86.46	87.90	85.75	86.39	86.39	-0.51%	867,231
Jun 2, 2026	86.31	87.93	85.89	86.83	86.83	0.52%	720,885
Jun 1, 2026	87.50	88.99	86.34	86.38	86.38	-0.52%	897,727
May 29, 2026	87.50	87.81	86.08	86.83	86.83	-0.96%	914,030
May 28, 2026	87.45	88.70	87.14	87.67	87.67	-0.16%	857,547
May 27, 2026	86.91	89.37	86.39	87.81	87.81	-0.49%	1,071,628
May 26, 2026	88.77	89.39	88.06	88.77	88.24	0.19%	686,287
May 22, 2026	88.76	89.98	87.14	88.60	88.07	0.57%	829,666
May 21, 2026	88.73	89.13	86.54	88.10	87.57	-0.45%	873,287
May 20, 2026	88.47	89.49	87.75	88.50	87.97	-0.18%	926,367
May 19, 2026	91.23	91.23	88.15	88.66	88.13	-3.06%	1,098,982
May 18, 2026	90.22	93.18	88.57	91.46	90.91	3.24%	1,473,497
May 15, 2026	91.19	91.53	88.33	88.59	88.06	-3.21%	1,870,441
May 14, 2026	93.65	94.39	91.50	91.53	90.98	-0.80%	1,000,368
May 13, 2026	97.34	98.30	92.22	92.27	91.72	-4.42%	1,364,456
May 12, 2026	99.02	99.51	96.44	96.54	95.96	-1.05%	1,018,518
May 11, 2026	94.88	98.95	93.86	97.56	96.98	3.95%	1,499,188
May 8, 2026	97.88	98.47	93.42	93.85	93.29	-3.62%	1,404,939
May 7, 2026	98.95	100.05	97.10	97.38	96.80	-2.54%	1,413,971
May 6, 2026	99.48	102.57	98.66	99.92	99.32	-4.64%	2,170,984
May 5, 2026	102.70	106.93	101.23	104.78	104.15	-8.78%	1,799,940
May 4, 2026	115.52	116.26	112.40	114.87	114.18	-0.10%	1,204,703
May 1, 2026	115.75	117.05	114.78	114.99	114.30	-0.25%	1,162,016
Apr 30, 2026	111.49	115.71	111.19	115.28	114.59	3.47%	940,622