Westlake Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
May 13, 2026	97.34	98.30	92.22	92.27	92.27	-4.42%	1,363,899
May 12, 2026	99.02	99.51	96.44	96.54	96.54	-1.05%	984,727
May 11, 2026	94.88	98.95	93.86	97.56	97.56	3.95%	1,498,429
May 8, 2026	97.88	98.47	93.42	93.85	93.85	-3.62%	1,403,798
May 7, 2026	98.95	100.05	97.10	97.38	97.38	-2.54%	1,413,816
May 6, 2026	99.48	102.57	98.66	99.92	99.92	-4.64%	2,169,778
May 5, 2026	102.70	106.93	101.23	104.78	104.78	-8.78%	1,799,844
May 4, 2026	115.52	116.26	112.40	114.87	114.87	-0.10%	1,204,599
May 1, 2026	115.75	117.05	114.78	114.99	114.99	-0.25%	1,161,783
Apr 30, 2026	111.49	115.71	111.19	115.28	115.28	3.47%	937,518
Apr 29, 2026	112.09	112.48	110.48	111.41	111.41	0.96%	929,956
Apr 28, 2026	112.41	112.86	109.14	110.35	110.35	-0.76%	692,833
Apr 27, 2026	111.91	113.66	109.42	111.19	111.19	0.50%	794,552
Apr 24, 2026	112.00	113.49	109.68	110.64	110.64	-1.43%	1,051,834
Apr 23, 2026	114.35	115.60	110.58	112.25	112.25	-1.78%	982,871
Apr 22, 2026	117.47	117.66	113.50	114.28	114.28	-1.18%	1,085,571
Apr 21, 2026	112.93	115.88	112.15	115.65	115.65	1.55%	854,569
Apr 20, 2026	111.72	115.60	111.72	113.88	113.88	1.13%	885,663
Apr 17, 2026	114.00	114.51	110.79	112.61	112.61	-5.37%	1,491,463
Apr 16, 2026	116.73	119.23	116.41	119.00	119.00	3.25%	1,084,387
Apr 15, 2026	118.13	118.41	114.43	115.25	115.25	-2.27%	951,261
Apr 14, 2026	119.49	119.97	115.01	117.93	117.93	-1.85%	934,780
Apr 13, 2026	120.00	121.94	118.50	120.15	120.15	1.50%	870,966
Apr 10, 2026	118.97	120.95	117.50	118.37	118.37	0.99%	926,141
Apr 9, 2026	120.99	122.53	116.26	117.21	117.21	-2.98%	1,248,942
Apr 8, 2026	114.25	120.88	113.33	120.81	120.81	-2.09%	1,529,621
Apr 7, 2026	120.52	124.23	119.44	123.39	123.39	3.23%	1,017,182
Apr 6, 2026	117.61	119.60	116.37	119.53	119.53	0.11%	1,044,114
Apr 2, 2026	116.60	120.00	114.49	119.40	119.40	2.42%	934,017
Apr 1, 2026	117.00	119.35	115.43	116.58	116.58	-0.21%	1,061,336
Mar 31, 2026	116.75	119.69	114.47	116.82	116.82	0.71%	1,229,333
Mar 30, 2026	115.11	117.17	113.59	116.00	116.00	2.39%	2,027,356
Mar 27, 2026	111.80	114.44	111.80	113.29	113.29	-0.15%	1,081,166
Mar 26, 2026	113.63	115.94	112.56	113.46	113.46	-0.67%	1,035,059
Mar 25, 2026	114.41	116.19	113.23	114.22	114.22	0.11%	1,119,432
Mar 24, 2026	107.94	115.13	107.07	114.09	114.09	5.15%	1,077,963
Mar 23, 2026	107.79	111.47	107.00	108.50	108.50	2.24%	1,549,760
Mar 20, 2026	111.80	112.41	105.48	106.12	106.12	-4.59%	1,516,059
Mar 19, 2026	110.89	112.67	109.40	111.23	111.23	-1.22%	946,387
Mar 18, 2026	113.12	115.78	112.56	112.60	112.60	1.04%	1,322,513
Mar 17, 2026	111.25	114.97	110.18	111.44	111.44	0.59%	1,213,537
Mar 16, 2026	111.25	113.10	110.00	110.79	110.79	-1.12%	1,324,190
Mar 13, 2026	115.00	116.46	111.50	112.04	112.04	-1.91%	1,598,529
Mar 12, 2026	107.24	114.65	107.24	114.22	114.22	6.72%	1,622,411
Mar 11, 2026	104.75	107.68	103.54	107.03	107.03	1.89%	1,051,172
Mar 10, 2026	104.81	107.74	103.86	105.04	105.04	-1.22%	927,395
Mar 9, 2026	102.18	107.45	100.54	106.34	106.34	3.05%	1,215,363
Mar 6, 2026	104.00	106.10	99.34	103.19	103.19	-2.20%	1,486,278
Mar 5, 2026	107.50	112.21	104.84	105.51	105.51	-0.58%	1,999,551
Mar 4, 2026	105.31	106.39	101.67	106.13	106.13	3.12%	1,031,827