Westlake Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 20, 2026	94.10	96.26	92.69	94.40	94.40	-0.69%	1,050,631
Feb 19, 2026	98.54	100.00	93.10	95.06	95.06	-4.49%	1,528,664
Feb 18, 2026	98.95	100.77	97.52	99.53	99.53	1.75%	1,004,952
Feb 17, 2026	99.58	101.30	96.48	97.82	97.82	-2.26%	1,385,821
Feb 13, 2026	98.50	101.35	97.31	100.08	100.08	1.37%	820,899
Feb 12, 2026	100.69	103.00	96.68	98.73	98.73	-1.62%	1,183,580
Feb 11, 2026	98.56	102.98	98.56	100.36	100.36	1.25%	1,850,331
Feb 10, 2026	97.03	100.24	96.34	99.12	99.12	2.74%	1,218,353
Feb 9, 2026	94.10	96.60	93.55	96.48	96.48	0.57%	983,851
Feb 6, 2026	94.09	96.31	93.18	95.93	95.93	4.08%	1,094,520
Feb 5, 2026	94.17	95.25	90.32	92.17	92.17	-3.99%	1,573,947
Feb 4, 2026	93.05	98.06	93.05	96.00	96.00	5.61%	2,645,417
Feb 3, 2026	84.53	91.59	84.52	90.90	90.90	8.51%	2,023,506
Feb 2, 2026	79.89	84.27	78.61	83.77	83.77	5.61%	1,571,653
Jan 30, 2026	80.58	82.05	77.58	79.32	79.32	-2.75%	1,940,622
Jan 29, 2026	82.10	82.69	78.44	81.56	81.56	-0.39%	1,370,169
Jan 28, 2026	82.49	83.00	80.99	81.88	81.88	0.24%	1,179,986
Jan 27, 2026	83.52	84.55	81.65	81.68	81.68	-2.95%	1,251,552
Jan 26, 2026	85.59	85.95	83.49	84.16	84.16	-1.24%	1,402,090
Jan 23, 2026	86.90	87.39	85.08	85.22	85.22	-1.76%	1,279,145
Jan 22, 2026	87.09	89.85	86.20	86.75	86.75	0.08%	986,989
Jan 21, 2026	84.99	87.97	84.32	86.68	86.68	3.29%	1,826,138
Jan 20, 2026	86.30	86.30	83.30	83.92	83.92	-4.50%	1,107,873
Jan 16, 2026	86.63	88.88	86.63	87.87	87.87	-0.49%	888,254
Jan 15, 2026	90.82	91.08	86.27	88.30	88.30	-1.73%	2,103,515
Jan 14, 2026	85.63	90.19	85.07	89.85	89.85	5.71%	1,600,484
Jan 13, 2026	85.72	86.48	84.48	85.00	85.00	0.07%	1,171,120
Jan 12, 2026	83.00	85.13	82.63	84.94	84.94	2.09%	2,078,842
Jan 9, 2026	79.90	83.24	78.42	83.20	83.20	4.61%	1,355,924
Jan 8, 2026	73.86	81.55	73.50	79.53	79.53	6.79%	1,757,514
Jan 7, 2026	77.86	78.63	73.95	74.47	74.47	-3.82%	1,640,435
Jan 6, 2026	74.90	78.34	74.39	77.43	77.43	3.27%	1,358,168
Jan 5, 2026	73.90	77.33	73.90	74.98	74.98	1.12%	1,005,445
Jan 2, 2026	74.57	75.17	72.69	74.15	74.15	0.28%	919,544
Dec 31, 2025	74.81	75.22	73.50	73.94	73.94	-1.26%	839,206
Dec 30, 2025	74.42	75.45	74.29	74.88	74.88	0.67%	919,794
Dec 29, 2025	73.01	74.68	72.96	74.38	74.38	0.85%	1,167,633
Dec 26, 2025	73.63	74.01	73.18	73.75	73.75	0.10%	704,445
Dec 24, 2025	73.61	74.12	72.84	73.68	73.68	0.53%	313,864
Dec 23, 2025	74.04	74.33	71.87	73.29	73.29	-1.48%	1,328,051
Dec 22, 2025	72.57	74.60	72.26	74.39	74.39	2.62%	928,142
Dec 19, 2025	75.44	75.44	71.79	72.49	72.49	-3.06%	1,764,346
Dec 18, 2025	74.40	75.66	73.34	74.78	74.78	1.08%	1,514,520
Dec 17, 2025	73.20	75.44	73.08	73.98	73.98	0.87%	1,921,705
Dec 16, 2025	73.00	74.42	72.06	73.34	73.34	-0.39%	2,460,019
Dec 15, 2025	76.02	76.33	71.27	73.63	73.63	-1.03%	3,755,898
Dec 12, 2025	75.28	75.40	73.61	74.40	74.40	-0.69%	1,944,497
Dec 11, 2025	72.61	75.09	72.23	74.92	74.92	3.01%	1,960,492
Dec 10, 2025	68.67	72.85	68.26	72.73	72.73	6.27%	1,752,653
Dec 9, 2025	68.69	71.03	68.42	68.44	68.44	1.21%	1,464,185