Westlake Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Aug 21, 2026	79.13	80.09	78.81	78.93	78.93	0.10%	746,203
Aug 20, 2026	78.58	80.19	78.01	78.85	78.85	-0.76%	681,306
Aug 19, 2026	78.39	80.58	77.66	79.45	79.45	2.49%	772,160
Aug 18, 2026	78.28	79.04	76.45	77.52	77.52	-0.88%	865,074
Aug 17, 2026	79.05	79.50	77.31	78.21	78.21	-1.68%	943,228
Aug 14, 2026	80.66	80.86	79.37	79.55	79.55	-0.80%	834,100
Aug 13, 2026	78.49	80.35	78.00	80.19	80.19	1.29%	617,701
Aug 12, 2026	80.38	80.41	78.04	79.17	79.17	-2.07%	734,237
Aug 11, 2026	78.82	80.98	78.82	80.84	80.84	2.21%	1,023,697
Aug 10, 2026	77.26	79.31	76.62	79.09	79.09	2.09%	1,298,020
Aug 7, 2026	76.95	79.15	76.33	77.47	77.47	-	918,773
Aug 6, 2026	79.77	80.57	77.35	77.47	77.47	-1.61%	897,231
Aug 5, 2026	79.42	79.77	75.48	78.74	78.74	-2.34%	1,786,781
Aug 4, 2026	72.86	80.64	72.72	80.63	80.63	15.37%	3,009,218
Aug 3, 2026	70.16	71.00	68.70	69.89	69.89	-0.87%	2,217,408
Jul 31, 2026	71.03	71.50	68.48	70.50	70.50	-1.70%	1,501,493
Jul 30, 2026	72.52	72.90	70.98	71.72	71.72	-0.73%	1,377,571
Jul 29, 2026	72.88	73.01	71.26	72.25	72.25	0.12%	1,404,090
Jul 28, 2026	73.17	74.32	71.89	72.16	72.16	-0.24%	883,732
Jul 27, 2026	73.22	73.54	71.86	72.33	72.33	-2.02%	1,340,392
Jul 24, 2026	75.10	75.10	73.44	73.82	73.82	-1.87%	1,198,468
Jul 23, 2026	78.17	78.33	74.70	75.23	75.23	-2.37%	763,751
Jul 22, 2026	76.98	77.99	76.14	77.06	77.06	1.10%	895,386
Jul 21, 2026	77.26	77.35	75.34	76.22	76.22	-0.90%	908,270
Jul 20, 2026	77.08	77.69	76.00	76.91	76.91	-0.93%	542,073
Jul 17, 2026	78.20	79.84	77.08	77.63	77.63	0.71%	591,956
Jul 16, 2026	76.47	78.17	76.44	77.08	77.08	0.04%	549,860
Jul 15, 2026	76.50	77.61	76.07	77.05	77.05	0.01%	589,112
Jul 14, 2026	77.10	78.00	75.28	77.04	77.04	1.28%	759,649
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