Quantum-Si incorporated Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 6, 2026	1.29	1.41	1.19	1.22	1.22	-4.69%	8,703,208
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
Aug 14, 2026	0.75	0.77	0.71	0.74	0.74	-6.35%	7,000,672
Aug 13, 2026	0.86	0.91	0.79	0.79	0.79	-5.66%	4,378,334
Aug 12, 2026	0.83	0.87	0.83	0.84	0.84	2.10%	1,499,136
Aug 11, 2026	0.80	0.85	0.80	0.82	0.82	3.81%	2,056,311
Aug 10, 2026	0.82	0.84	0.79	0.79	0.79	-2.98%	2,434,391
Aug 7, 2026	0.76	0.83	0.76	0.81	0.81	7.87%	2,730,130
Aug 6, 2026	0.75	0.78	0.75	0.76	0.76	-0.20%	1,493,531
Aug 5, 2026	0.78	0.79	0.76	0.76	0.76	-1.16%	2,484,838
Aug 4, 2026	0.76	0.80	0.76	0.77	0.77	2.60%	3,986,331
Aug 3, 2026	0.72	0.76	0.71	0.75	0.75	4.72%	2,706,253
Jul 31, 2026	0.73	0.75	0.71	0.71	0.71	-1.06%	1,840,507
Jul 30, 2026	0.73	0.74	0.69	0.72	0.72	2.52%	3,557,133
Jul 29, 2026	0.76	0.78	0.70	0.70	0.70	-7.67%	4,102,774
Jul 28, 2026	0.78	0.78	0.74	0.76	0.76	-2.91%	3,268,923