Westlake Corporation (WLK) NYSE

Currency In USD

WLK Historical Return

If you invested $1000 in Westlake Corporation (WLK) 10 years ago, it would be worth $1,757.91 as of August 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,018.98, while $1000 invested 1 year ago would be worth $917.36. This corresponds to total returns of 75.79%, 1.9%, -8.26%, respectively, with annualized returns of 5.8%, 0.38%, -8.26%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

WLK Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
August 21, 2026	79.13	78.93	78.93	80.09	78.81	746,213
August 20, 2026	78.58	78.85	78.85	80.19	78.01	681,440
August 19, 2026	78.39	79.45	79.45	80.58	77.66	772,160
August 18, 2026	78.28	77.52	77.52	79.04	76.45	865,074
August 17, 2026	79.05	78.21	78.21	79.5	77.31	943,228
August 14, 2026	80.66	79.55	79.55	80.86	79.37	834,100
August 13, 2026	78.49	80.19	80.19	80.35	78	617,736
August 12, 2026	80.38	79.17	79.17	80.41	78.03	734,237
August 11, 2026	78.82	80.84	80.84	80.98	78.82	1.02M
August 10, 2026	77.26	79.09	79.09	79.31	76.61	1.3M
August 07, 2026	76.95	77.47	77.47	79.15	76.33	918,773
August 06, 2026	79.77	77.47	77.47	80.57	77.35	897,235
August 05, 2026	79.42	78.74	78.74	79.77	75.48	1.79M
August 04, 2026	72.86	80.63	80.63	80.64	72.72	3.01M
August 03, 2026	70.16	69.89	69.89	71	68.7	2.22M
July 31, 2026	71.03	70.5	70.5	71.5	68.48	1.5M
July 30, 2026	72.52	71.72	71.72	72.89	70.98	1.38M
July 29, 2026	72.88	72.25	72.25	73.01	71.26	1.4M
July 28, 2026	73.17	72.16	72.16	74.32	71.89	883,733
July 27, 2026	73.22	72.33	72.33	73.54	71.86	1.34M
July 23, 2026	78.17	75.23	75.23	78.33	74.7	763,758
July 22, 2026	76.98	77.06	77.06	77.99	76.14	895,411
July 21, 2026	77.26	76.22	76.22	77.35	75.34	908,270
July 20, 2026	77.08	76.91	76.91	77.69	76	542,073
July 17, 2026	78.2	77.63	77.63	79.84	77.08	591,957
July 16, 2026	76.47	77.08	77.08	78.17	76.44	549,860
July 15, 2026	76.5	77.05	77.05	77.61	76.07	589,112
July 14, 2026	77.1	77.04	77.04	78	75.28	759,650
July 13, 2026	76.71	76.07	76.07	78.07	75.29	941,882
July 10, 2026	75.3	75.49	75.49	75.76	74.67	774,136
July 09, 2026	75.22	74.48	74.48	76.26	74.28	869,471
July 08, 2026	77.72	75.8	75.8	78.6	75.76	1.4M
July 07, 2026	75.04	76.27	76.27	77.13	74.82	1.84M
July 06, 2026	73.95	74.8	74.8	75.27	72.71	1.37M
July 02, 2026	72.88	74.77	74.77	75.13	72.88	1.38M
July 01, 2026	71.86	72.82	72.82	74.26	71.23	1.84M
June 30, 2026	74.68	73	73	75.21	72.71	1.04M
June 29, 2026	76.44	74.72	74.72	76.53	73.73	1.32M
June 26, 2026	76	76.62	76.62	77.18	75.58	1.57M
June 25, 2026	75.25	76.54	76.54	76.81	74.66	1.86M
June 24, 2026	75.74	75.87	75.87	76.67	73.77	2.02M
June 23, 2026	77.37	76.48	76.48	78.32	76.26	988,310
June 22, 2026	79.29	77.95	77.95	79.69	77.27	1.03M
June 18, 2026	82.94	80.28	80.28	83.09	80.09	1.73M
June 17, 2026	83.67	83.48	83.48	87.27	83.23	736,411
June 16, 2026	86.89	84.33	84.33	87.66	83.92	1.12M
June 15, 2026	87.65	87.45	87.45	88.76	86.16	620,332
June 12, 2026	87.45	88.5	88.5	89.47	86.53	770,813
June 11, 2026	88.43	87.27	87.27	89.23	86.43	531,732
June 10, 2026	86.5	87.12	87.12	88.99	85.81	1.18M
June 09, 2026	85.63	86.11	86.11	86.92	84.38	1.18M
June 08, 2026	84.38	85.26	85.26	85.78	83.75	914,802
June 05, 2026	84.29	84.64	84.64	85.34	82.98	792,745
June 04, 2026	86.29	85.25	85.25	87.04	84.37	736,343
June 03, 2026	86.46	86.39	86.39	87.9	85.75	847,974
June 02, 2026	86.31	86.83	86.83	87.93	85.89	722,187
June 01, 2026	87.5	86.38	86.38	88.99	86.34	916,470
May 29, 2026	87.5	86.83	86.83	87.81	86.08	915,783
May 28, 2026	87.45	87.67	87.67	88.7	87.14	857,547
May 27, 2026	86.91	87.81	87.81	89.37	86.39	1.05M