Quantum-Si incorporated Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
May 19, 2026	0.85	0.87	0.82	0.86	0.86	0.83%	3,086,191
May 18, 2026	0.90	0.90	0.83	0.85	0.85	-4.07%	4,540,441
May 15, 2026	0.91	0.91	0.88	0.89	0.89	-4.59%	3,706,076
May 14, 2026	0.93	0.96	0.91	0.93	0.93	0.38%	4,436,223
May 13, 2026	0.93	0.96	0.90	0.93	0.93	-1.60%	4,868,987
May 12, 2026	0.92	1.03	0.90	0.94	0.94	2.42%	10,063,496
May 11, 2026	0.90	0.95	0.89	0.92	0.92	1.72%	5,786,596
May 8, 2026	0.95	0.97	0.88	0.91	0.91	-7.55%	13,192,853
May 7, 2026	1.03	1.03	0.96	0.98	0.98	-4.80%	7,220,967
May 6, 2026	0.97	1.04	0.96	1.03	1.03	7.15%	8,075,250
May 5, 2026	0.98	0.98	0.95	0.96	0.96	-1.05%	2,515,970
May 4, 2026	0.95	0.99	0.94	0.97	0.97	1.39%	2,873,511
May 1, 2026	0.98	1.00	0.94	0.96	0.96	-2.28%	3,590,011
Apr 30, 2026	0.88	1.02	0.88	0.98	0.98	13.39%	11,918,778
Apr 29, 2026	0.90	0.91	0.86	0.86	0.86	-5.18%	3,449,640
Apr 28, 2026	0.89	0.94	0.89	0.91	0.91	1.30%	3,159,350
Apr 27, 2026	0.91	0.94	0.87	0.90	0.90	-0.61%	3,118,018
Apr 24, 2026	0.98	0.98	0.90	0.91	0.91	-3.70%	7,282,600
Apr 23, 2026	1.03	1.04	0.92	0.94	0.94	-11.26%	7,311,019
Apr 22, 2026	0.99	1.07	0.96	1.06	1.06	8.50%	11,054,678
Apr 21, 2026	1.00	1.05	0.98	0.98	0.98	-3.27%	5,203,062
Apr 20, 2026	1.02	1.06	0.98	1.01	1.01	-5.61%	7,820,642
Apr 17, 2026	1.07	1.14	1.06	1.07	1.07	2.88%	7,021,500
Apr 16, 2026	1.08	1.09	1.00	1.04	1.04	-0.95%	7,641,472
Apr 15, 2026	0.90	1.06	0.90	1.05	1.05	24.88%	17,707,467
Apr 14, 2026	0.80	0.86	0.80	0.84	0.84	6.61%	3,070,566
Apr 13, 2026	0.74	0.79	0.72	0.79	0.79	6.51%	2,650,507
Apr 10, 2026	0.75	0.77	0.73	0.74	0.74	-0.86%	1,881,862
Apr 9, 2026	0.75	0.76	0.73	0.75	0.75	-0.48%	2,638,571
Apr 8, 2026	0.78	0.78	0.74	0.75	0.75	5.50%	3,188,982
Apr 7, 2026	0.73	0.73	0.69	0.71	0.71	-2.43%	3,515,255
Apr 6, 2026	0.74	0.77	0.73	0.73	0.73	-2.50%	1,890,500
Apr 2, 2026	0.74	0.76	0.72	0.75	0.75	0.03%	2,571,803
Apr 1, 2026	0.79	0.80	0.75	0.75	0.75	-3.41%	2,354,460
Mar 31, 2026	0.76	0.80	0.76	0.77	0.77	4.91%	2,872,471
Mar 30, 2026	0.76	0.78	0.73	0.74	0.74	-3.44%	3,758,169
Mar 27, 2026	0.80	0.82	0.76	0.76	0.76	-5.52%	3,169,678
Mar 26, 2026	0.86	0.86	0.81	0.81	0.81	-6.51%	2,619,269
Mar 25, 2026	0.86	0.90	0.86	0.87	0.87	1.63%	2,549,869
Mar 24, 2026	0.89	0.90	0.83	0.85	0.85	-5.22%	2,660,281
Mar 23, 2026	0.85	0.91	0.79	0.90	0.90	6.26%	4,568,838
Mar 20, 2026	0.87	0.88	0.83	0.85	0.85	-1.88%	3,813,291
Mar 19, 2026	0.88	0.89	0.85	0.86	0.86	-2.39%	2,419,119
Mar 18, 2026	0.93	0.94	0.88	0.88	0.88	-5.14%	3,158,802
Mar 17, 2026	0.95	0.96	0.92	0.93	0.93	-1.41%	2,787,347
Mar 16, 2026	0.96	0.98	0.94	0.94	0.94	-0.64%	2,701,770
Mar 13, 2026	0.98	1.01	0.93	0.95	0.95	-2.70%	2,835,009
Mar 12, 2026	1.02	1.02	0.95	0.98	0.98	-7.05%	3,977,826
Mar 11, 2026	1.05	1.07	1.00	1.05	1.05	0.96%	3,613,642
Mar 10, 2026	0.94	1.10	0.94	1.04	1.04	12.32%	8,474,557