Quantum-Si (QSI) Price: 1.455

Quantum-Si, Inc. (QSI)

1.455 -0.30 (-16.86%) USD | NASDAQ | Oct 30, 16:00

1.45 0.00 (0.00%) After-Hours: 18:24

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Historical Price Data

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Date	Open	High	Low	Close	Volume
Oct 29, 2026	1.681	1.81	1.66	1.75	8.843M
Oct 28, 2026	1.63	1.73	1.59	1.72	10.05M
Oct 27, 2026	1.50	1.75	1.495	1.65	16.53M
Oct 26, 2026	1.425	1.48	1.36	1.46	10.35M
Oct 23, 2026	1.155	1.42	1.15	1.40	11.46M
Oct 22, 2026	1.17	1.21	1.145	1.15	3.572M
Oct 21, 2026	1.16	1.23	1.16	1.23	3.423M
Oct 20, 2026	1.06	1.20	1.04	1.16	6.183M
Oct 19, 2026	1.145	1.15	1.01	1.09	8.714M
Oct 16, 2026	1.33	1.33	1.10	1.12	7.691M
Oct 15, 2026	1.35	1.39	1.24	1.31	9.269M
Oct 14, 2026	1.34	1.44	1.330	1.39	5.365M
Oct 13, 2026	1.345	1.46	1.31	1.41	6.240M
Oct 12, 2026	1.475	1.475	1.34	1.36	10.36M
Oct 09, 2026	1.26	1.66	1.258	1.53	40.90M
Oct 08, 2026	1.29	1.30	1.20	1.22	5.851M
Oct 07, 2026	1.17	1.310	1.09	1.28	8.037M
Oct 06, 2026	1.29	1.41	1.19	1.22	8.703M
Oct 05, 2026	1.525	1.53	1.260	1.28	19.19M
Oct 02, 2026	1.385	1.55	1.17	1.55	18.77M
Oct 01, 2026	1.20	1.48	1.15	1.43	33.06M
Sep 30, 2026	0.96	1.12	0.96	1.07	13.84M
Sep 29, 2026	0.805	1.03	0.805	0.9581	23.01M
Sep 28, 2026	0.825	0.8338	0.795	0.795	1.567M
Sep 25, 2026	0.7943	0.84	0.7755	0.8343	2.593M

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