Westlake Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 3, 2026	86.83	86.92	86.83	86.83	-	-	76
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
Apr 10, 2026	118.97	120.95	117.50	118.37	117.66	0.99%	926,152
Apr 9, 2026	120.99	122.53	116.26	117.21	116.51	-2.98%	1,318,732
Apr 8, 2026	114.25	120.88	113.33	120.81	120.09	-2.09%	1,529,625
Apr 7, 2026	120.52	124.23	119.44	123.39	122.65	3.23%	1,026,058
Apr 6, 2026	117.61	119.60	116.37	119.53	118.82	0.11%	1,044,558
Apr 2, 2026	116.60	120.00	114.49	119.40	118.69	2.42%	934,032
Apr 1, 2026	117.00	119.35	115.43	116.58	115.88	-0.21%	1,061,368
Mar 31, 2026	116.75	119.69	114.47	116.82	116.12	0.71%	1,229,574
Mar 30, 2026	115.11	117.17	113.59	116.00	115.31	2.39%	2,027,797
Mar 27, 2026	111.80	114.44	111.80	113.29	112.61	-0.15%	1,083,889
Mar 26, 2026	113.63	115.94	112.56	113.46	112.78	-0.67%	1,035,069
Mar 25, 2026	114.41	116.19	113.23	114.22	113.54	0.11%	1,119,548
Mar 24, 2026	107.94	115.13	107.07	114.09	113.41	5.15%	1,078,008