Quantum-Si incorporated Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 26, 2026	1.43	1.48	1.36	1.46	1.46	4.29%	10,346,546
Oct 23, 2026	1.16	1.42	1.15	1.40	1.40	21.74%	11,461,196
Oct 22, 2026	1.17	1.21	1.15	1.15	1.15	-6.50%	3,572,179
Oct 21, 2026	1.16	1.23	1.16	1.23	1.23	6.03%	3,422,744
Oct 20, 2026	1.06	1.20	1.04	1.16	1.16	6.42%	6,182,607
Oct 19, 2026	1.15	1.15	1.01	1.09	1.09	-2.68%	8,713,998
Oct 16, 2026	1.33	1.33	1.10	1.12	1.12	-14.50%	7,589,097
Oct 15, 2026	1.35	1.39	1.24	1.31	1.31	-5.76%	9,224,448
Oct 14, 2026	1.34	1.44	1.33	1.39	1.39	-1.42%	5,284,882
Oct 13, 2026	1.35	1.46	1.31	1.41	1.41	3.68%	6,204,664
Oct 12, 2026	1.48	1.48	1.34	1.36	1.36	-11.11%	10,212,616
Oct 9, 2026	1.26	1.66	1.26	1.53	1.53	25.41%	40,542,665
Oct 8, 2026	1.29	1.30	1.20	1.22	1.22	-4.69%	5,699,091
Oct 7, 2026	1.17	1.31	1.09	1.28	1.28	4.92%	7,951,512
Oct 6, 2026	1.29	1.41	1.19	1.22	1.22	-4.69%	8,601,059
Oct 5, 2026	1.53	1.53	1.26	1.28	1.28	-17.42%	19,079,102
Oct 2, 2026	1.39	1.55	1.17	1.55	1.55	8.39%	18,562,467
Oct 1, 2026	1.20	1.48	1.15	1.43	1.43	33.64%	32,393,779
Sep 30, 2026	0.96	1.12	0.96	1.07	1.07	11.68%	11,681,346
Sep 29, 2026	0.81	1.03	0.81	0.96	0.96	20.52%	22,963,279
Sep 28, 2026	0.83	0.83	0.80	0.80	0.80	-4.71%	1,567,026
Sep 25, 2026	0.79	0.84	0.78	0.83	0.83	6.28%	2,593,482
Sep 24, 2026	0.75	0.80	0.74	0.79	0.79	3.47%	1,593,305
Sep 23, 2026	0.79	0.81	0.75	0.76	0.76	-3.31%	1,476,524
Sep 22, 2026	0.76	0.79	0.75	0.78	0.78	3.81%	2,429,915
Sep 21, 2026	0.76	0.77	0.75	0.76	0.76	1.45%	1,126,539
Sep 18, 2026	0.79	0.80	0.74	0.75	0.75	-3.23%	1,713,327
Sep 17, 2026	0.75	0.80	0.75	0.77	0.77	5.47%	2,826,083
Sep 16, 2026	0.72	0.75	0.72	0.73	0.73	1.40%	915,220
Sep 15, 2026	0.72	0.74	0.72	0.72	0.72	-0.69%	1,166,814
Sep 14, 2026	0.73	0.75	0.72	0.73	0.73	-2.03%	1,390,457
Sep 11, 2026	0.74	0.76	0.74	0.74	0.74	0.12%	1,074,254
Sep 10, 2026	0.75	0.76	0.73	0.74	0.74	-1.45%	1,715,325
Sep 9, 2026	0.76	0.77	0.75	0.75	0.75	-1.32%	1,449,017
Sep 8, 2026	0.77	0.79	0.76	0.76	0.76	-0.78%	1,054,362
Sep 4, 2026	0.76	0.77	0.76	0.77	0.77	0.66%	898,780
Sep 3, 2026	0.77	0.79	0.76	0.76	0.76	-	979,996
Sep 2, 2026	0.76	0.79	0.75	0.76	0.76	0.49%	1,619,343
Sep 1, 2026	0.75	0.78	0.75	0.76	0.76	-1.12%	1,504,027
Aug 31, 2026	0.78	0.78	0.76	0.77	0.77	-1.81%	1,134,395
Aug 28, 2026	0.82	0.82	0.77	0.78	0.78	-2.88%	2,417,639
Aug 27, 2026	0.79	0.83	0.79	0.80	0.80	1.58%	1,375,317
Aug 26, 2026	0.85	0.86	0.79	0.79	0.79	-6.69%	2,662,928
Aug 25, 2026	0.79	0.86	0.78	0.85	0.85	10.14%	4,371,714
Aug 24, 2026	0.80	0.83	0.75	0.77	0.77	-7.87%	3,853,818
Aug 21, 2026	0.78	0.93	0.78	0.84	0.84	7.05%	7,825,142
Aug 20, 2026	0.77	0.81	0.77	0.78	0.78	1.29%	3,233,617
Aug 19, 2026	0.72	0.78	0.72	0.77	0.77	5.78%	2,863,169
Aug 18, 2026	0.73	0.74	0.72	0.73	0.73	-2.18%	1,520,320
Aug 17, 2026	0.74	0.80	0.74	0.74	0.74	0.59%	2,429,723