Costco Wholesale Corp historical data

Date	Open	High	Low	Close	Adj. close	Volume
2026-10-22	1,007.31	1,018.86	1,001.23	1,018.21	1,018.21	2,837,453
2026-10-21	991.00	1,000.25	988.47	998.31	998.31	1,512,361
2026-10-20	1,000.00	1,003.00	991.00	994.61	994.61	2,167,808
2026-10-19	986.00	997.43	985.01	995.53	995.53	1,745,588
2026-10-16	982.49	993.19	980.67	989.11	989.11	2,517,278
2026-10-15	998.11	1,008.37	977.24	978.01	978.01	3,000,940
2026-10-14	961.35	982.64	960.00	982.00	982.00	3,079,753
2026-10-13	965.73	966.00	953.78	954.63	954.63	1,422,678
2026-10-12	949.46	960.74	946.70	959.44	959.44	1,480,333
2026-10-09	945.00	951.29	942.53	946.92	946.92	1,503,095
2026-10-08	952.92	953.25	939.60	947.92	947.92	2,272,984
2026-10-07	940.84	948.77	937.60	942.25	942.25	1,772,394
2026-10-06	921.32	937.04	919.00	935.68	935.68	1,902,616
2026-10-05	920.00	925.34	914.75	923.52	923.52	1,955,558
2026-10-02	921.18	921.18	909.66	920.65	920.65	2,025,566
2026-10-01	910.87	923.50	903.78	914.94	914.94	2,126,408
2026-09-30	924.61	925.56	910.30	910.34	910.34	2,219,581
2026-09-29	916.80	925.97	912.66	924.59	924.59	2,415,200
2026-09-28	924.39	931.09	913.00	922.92	922.92	2,443,760
2026-09-25	887.00	925.14	883.10	922.77	922.77	4,631,424
2026-09-24	908.81	909.43	895.26	896.48	896.48	2,893,294
2026-09-23	901.31	905.59	893.36	904.70	904.70	2,283,883
2026-09-22	902.26	903.40	895.84	899.41	899.41	1,982,884

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Stock splits

Date	Split (new : old)
2000-01-14	2:1
1993-10-22	2:1

Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.