Westlake Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 23, 2026	64.12	65.29	63.50	64.56	64.56	0.65%	1,033,317
Oct 22, 2026	61.20	64.40	60.71	64.14	64.14	5.42%	1,279,013
Oct 21, 2026	62.85	63.25	60.36	60.84	60.84	-2.95%	1,129,761
Oct 20, 2026	62.63	62.98	61.72	62.69	62.69	0.64%	599,964
Oct 19, 2026	63.16	63.32	61.97	62.29	62.29	-1.64%	501,848
Oct 16, 2026	63.65	64.39	62.08	63.33	63.33	-0.44%	775,520
Oct 15, 2026	62.67	64.10	61.70	63.61	63.61	2.25%	701,318
Oct 14, 2026	61.50	62.36	61.00	62.21	62.21	0.57%	828,315
Oct 13, 2026	62.11	63.33	61.72	61.86	61.86	0.02%	736,192
Oct 12, 2026	61.86	62.32	60.99	61.85	61.85	-0.71%	987,187
Oct 9, 2026	62.39	62.79	61.68	62.29	62.29	-0.03%	766,074
Oct 8, 2026	61.50	62.35	60.78	62.31	62.31	1.28%	1,166,554
Oct 7, 2026	62.83	63.18	59.84	61.52	61.52	-2.95%	1,152,537
Oct 6, 2026	64.56	64.80	63.07	63.39	63.39	-1.89%	916,740
Oct 5, 2026	63.24	65.86	62.28	64.61	64.61	1.75%	1,061,395
Oct 2, 2026	62.67	64.92	61.80	63.50	63.50	1.65%	1,352,702
Oct 1, 2026	60.66	62.55	58.95	62.47	62.47	0.26%	1,988,975
Sep 30, 2026	63.01	63.61	62.30	62.31	62.31	-1.70%	1,205,822
Sep 29, 2026	65.59	65.59	62.70	63.39	63.39	-5.16%	1,498,822
Sep 28, 2026	67.65	67.75	66.31	66.84	66.84	-1.28%	444,138
Sep 25, 2026	66.44	67.75	65.66	67.71	67.71	1.42%	645,340
Sep 24, 2026	68.40	68.56	66.72	66.76	66.76	-2.43%	585,202
Sep 23, 2026	68.97	69.39	68.35	68.42	68.42	-0.55%	504,869
Sep 22, 2026	67.98	70.30	67.84	68.80	68.80	1.52%	620,231
Sep 21, 2026	69.40	69.42	67.74	67.77	67.77	-1.88%	558,246
Sep 18, 2026	70.03	70.07	68.74	69.07	69.07	-2.13%	704,012
Sep 17, 2026	71.26	71.62	69.83	70.57	70.57	-0.13%	484,179
Sep 16, 2026	69.81	71.63	69.39	70.66	70.66	0.91%	535,854
Sep 15, 2026	68.84	70.18	68.55	70.02	70.02	1.54%	864,004
Sep 14, 2026	71.05	72.48	68.63	68.96	68.96	-2.61%	974,676
Sep 11, 2026	71.94	72.50	70.44	70.81	70.81	-1.13%	533,784
Sep 10, 2026	71.87	73.75	70.69	71.62	71.62	-0.22%	852,095
Sep 9, 2026	72.70	73.39	70.74	71.78	71.78	-3.97%	846,696
Sep 8, 2026	75.56	76.14	74.63	74.75	74.75	-0.05%	561,113
Sep 4, 2026	74.05	75.56	73.73	74.79	74.79	0.25%	570,436
Sep 3, 2026	77.19	77.45	74.51	74.60	74.60	-2.19%	594,985
Sep 2, 2026	73.60	76.82	73.60	76.27	76.27	2.75%	737,246
Sep 1, 2026	75.02	75.59	73.45	74.23	74.23	-1.12%	576,999
Aug 31, 2026	76.05	76.52	74.28	75.07	75.07	-0.85%	560,984
Aug 28, 2026	74.72	76.02	73.92	75.71	75.71	2.41%	731,522
Aug 27, 2026	74.22	74.78	72.91	73.93	73.93	-0.91%	567,299
Aug 26, 2026	74.47	74.93	72.90	74.61	74.61	-0.25%	800,105
Aug 25, 2026	75.52	75.67	74.60	74.80	74.80	-1.52%	536,471
Aug 24, 2026	78.67	79.18	76.19	76.49	75.96	-3.09%	614,370
Aug 21, 2026	79.13	80.09	78.81	78.93	78.38	0.10%	746,214
Aug 20, 2026	78.58	80.19	78.01	78.85	78.30	-0.76%	681,441
Aug 19, 2026	78.39	80.58	77.66	79.45	78.90	2.49%	772,162
Aug 18, 2026	78.28	79.04	76.45	77.52	76.98	-0.88%	865,076
Aug 17, 2026	79.05	79.50	77.31	78.21	77.67	-1.68%	943,229
Aug 14, 2026	80.66	80.86	79.37	79.55	79.00	-0.80%	834,151