TSX:COST Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 30, 2026	44.82	45.25	44.63	44.86	44.86	1.71%	95,303
Oct 29, 2026	44.07	44.17	43.67	44.17	44.11	1.33%	53,814
Oct 28, 2026	43.75	43.76	43.48	43.59	43.53	-0.91%	34,946
Oct 27, 2026	44.38	44.43	43.85	43.99	43.93	-1.28%	70,063
Oct 26, 2026	44.34	45.00	44.34	44.56	44.49	0.16%	33,062
Oct 23, 2026	44.97	45.30	44.49	44.49	44.42	-1.51%	60,030
Oct 22, 2026	44.67	45.18	44.44	45.17	45.10	1.99%	162,778
Oct 21, 2026	43.99	44.36	43.84	44.29	44.22	0.41%	50,550
Oct 20, 2026	44.33	44.49	44.00	44.11	44.05	-0.14%	76,079
Oct 19, 2026	43.84	44.25	43.80	44.17	44.11	0.59%	60,966
Oct 16, 2026	43.56	44.09	43.52	43.91	43.85	1.18%	84,060
Oct 15, 2026	44.00	44.72	43.39	43.40	43.34	-0.44%	247,530
Oct 14, 2026	42.66	43.59	42.64	43.59	43.53	2.88%	242,983
Oct 13, 2026	42.76	42.87	42.35	42.37	42.31	0.83%	94,075
Oct 9, 2026	42.06	42.22	41.84	42.02	41.96	-0.12%	59,402
Oct 8, 2026	42.26	42.29	41.75	42.07	42.01	0.50%	103,255
Oct 7, 2026	41.80	42.11	41.73	41.86	41.80	0.70%	113,289
Oct 6, 2026	40.97	41.60	40.97	41.57	41.51	1.34%	79,839
Oct 5, 2026	40.91	41.11	40.67	41.02	40.96	0.32%	39,334
Oct 2, 2026	40.79	40.92	40.43	40.89	40.83	0.59%	83,009
Oct 1, 2026	40.54	41.00	40.20	40.65	40.59	0.49%	72,327
Sep 30, 2026	41.11	41.11	40.45	40.45	40.39	-1.51%	50,770
Sep 29, 2026	40.70	41.13	40.60	41.07	41.01	0.10%	47,518
Sep 28, 2026	41.10	41.40	40.67	41.03	40.97	-0.05%	85,535
Sep 25, 2026	39.50	41.13	39.32	41.05	40.99	2.88%	218,087
Sep 24, 2026	40.41	40.41	39.85	39.90	39.84	-0.80%	100,433
Sep 23, 2026	40.16	40.27	39.75	40.22	40.16	0.52%	95,377
Sep 22, 2026	40.22	40.22	39.87	40.01	39.95	0.05%	102,256
Sep 21, 2026	39.62	40.02	39.40	39.99	39.93	0.30%	97,826
Sep 18, 2026	39.76	39.96	39.71	39.87	39.81	0.23%	52,580
Sep 17, 2026	39.90	39.90	39.53	39.78	39.72	-	117,555
Sep 16, 2026	40.06	40.15	39.73	39.78	39.72	-0.75%	142,406
Sep 15, 2026	40.85	40.85	40.07	40.08	40.02	-1.96%	84,151
Sep 14, 2026	40.77	41.00	40.56	40.88	40.82	1.39%	119,688
Sep 11, 2026	40.36	40.36	40.11	40.32	40.26	0.35%	40,738
Sep 10, 2026	40.26	40.59	40.03	40.18	40.12	-0.05%	64,982
Sep 9, 2026	40.40	40.45	40.01	40.20	40.14	-0.89%	94,296
Sep 8, 2026	40.74	40.74	40.35	40.56	40.50	-0.54%	150,150
Sep 4, 2026	41.27	41.27	40.73	40.78	40.72	-1.02%	169,299
Sep 3, 2026	41.25	41.44	40.77	41.20	41.14	-0.27%	122,944
Sep 2, 2026	41.69	41.69	41.00	41.31	41.25	-1.27%	134,199
Sep 1, 2026	42.06	42.36	41.65	41.84	41.78	-0.43%	61,781
Aug 31, 2026	42.11	42.21	41.90	42.02	41.96	-0.12%	53,032
Aug 28, 2026	41.92	42.44	41.77	42.07	42.01	0.89%	97,456
Aug 27, 2026	42.27	42.27	41.59	41.70	41.64	-2.09%	117,327
Aug 26, 2026	42.71	42.86	42.50	42.59	42.53	-0.33%	18,801
Aug 25, 2026	43.07	43.13	42.73	42.73	42.67	-1.11%	45,730
Aug 24, 2026	42.36	43.37	42.36	43.21	43.15	2.32%	80,185
Aug 21, 2026	41.68	42.31	41.66	42.23	42.17	1.47%	56,048
Aug 20, 2026	41.92	42.07	41.30	41.62	41.56	-2.32%	111,657