Westlake Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 23, 2026	77.37	78.32	76.82	76.90	-	-1.35%	500,845
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
Apr 29, 2026	112.09	112.48	110.48	111.41	110.74	0.96%	929,972
Apr 28, 2026	112.41	112.86	109.14	110.35	109.69	-0.76%	692,833
Apr 27, 2026	111.91	113.66	109.42	111.19	110.53	0.50%	794,561
Apr 24, 2026	112.00	113.49	109.68	110.64	109.98	-1.43%	1,052,389
Apr 23, 2026	114.35	115.60	110.58	112.25	111.58	-1.78%	982,944
Apr 22, 2026	117.47	117.66	113.50	114.28	113.60	-1.18%	1,087,671
Apr 21, 2026	112.93	115.88	112.15	115.65	114.96	1.55%	854,582
Apr 20, 2026	111.72	115.60	111.72	113.88	113.20	1.13%	885,685
Apr 17, 2026	114.00	114.51	110.79	112.61	111.94	-5.37%	1,491,705
Apr 16, 2026	116.73	119.23	116.41	119.00	118.29	3.25%	1,084,441
Apr 15, 2026	118.13	118.41	114.43	115.25	114.56	-2.27%	951,543
Apr 14, 2026	119.49	119.97	115.01	117.93	117.23	-1.85%	935,330
Apr 13, 2026	120.00	121.94	118.50	120.15	119.43	1.50%	870,986