Quantum-Si incorporated (QSI)
NASDAQ: QSI · Real-Time Price · USD
0.8670
-0.0450 (-4.93%)
Apr 29, 2026, 3:30 PM EDT - Market open

Quantum-Si incorporated Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 29, 20260.900.910.860.87--5.08%2,439,573
Apr 28, 20260.890.940.890.910.911.30%3,159,350
Apr 27, 20260.910.940.870.900.90-0.61%3,118,018
Apr 24, 20260.980.980.900.910.91-3.70%7,282,600
Apr 23, 20261.031.040.920.940.94-11.26%7,311,019
Apr 22, 20260.991.070.961.061.068.50%11,054,678
Apr 21, 20261.001.050.980.980.98-3.27%5,203,062
Apr 20, 20261.021.060.981.011.01-5.61%7,820,642
Apr 17, 20261.071.141.061.071.072.88%7,021,500
Apr 16, 20261.081.091.001.041.04-0.95%7,641,472
Apr 15, 20260.901.060.901.051.0524.88%17,707,467
Apr 14, 20260.800.860.800.840.846.61%3,070,566
Apr 13, 20260.740.790.720.790.796.51%2,650,507
Apr 10, 20260.750.770.730.740.74-0.86%1,881,862
Apr 9, 20260.750.760.730.750.75-0.48%2,638,571
Apr 8, 20260.780.780.740.750.755.50%3,188,982
Apr 7, 20260.730.730.690.710.71-2.43%3,515,255
Apr 6, 20260.740.770.730.730.73-2.50%1,890,500
Apr 2, 20260.740.760.720.750.750.03%2,571,803
Apr 1, 20260.790.800.750.750.75-3.41%2,354,460
Mar 31, 20260.760.800.760.770.774.91%2,872,471
Mar 30, 20260.760.780.730.740.74-3.44%3,758,169
Mar 27, 20260.800.820.760.760.76-5.52%3,169,678
Mar 26, 20260.860.860.810.810.81-6.51%2,619,269
Mar 25, 20260.860.900.860.870.871.63%2,549,869
Mar 24, 20260.890.900.830.850.85-5.22%2,660,281
Mar 23, 20260.850.910.790.900.906.26%4,568,838
Mar 20, 20260.870.880.830.850.85-1.88%3,813,291
Mar 19, 20260.880.890.850.860.86-2.39%2,419,119
Mar 18, 20260.930.940.880.880.88-5.14%3,158,802
Mar 17, 20260.950.960.920.930.93-1.41%2,787,347
Mar 16, 20260.960.980.940.940.94-0.64%2,701,770
Mar 13, 20260.981.010.930.950.95-2.70%2,835,009
Mar 12, 20261.021.020.950.980.98-7.05%3,977,826
Mar 11, 20261.051.071.001.051.050.96%3,613,642
Mar 10, 20260.941.100.941.041.0412.32%8,474,557
Mar 9, 20260.880.930.850.930.937.44%4,955,006
Mar 6, 20260.890.900.840.860.86-5.24%5,636,902
Mar 5, 20260.900.970.890.910.91-0.05%4,219,538
Mar 4, 20260.950.980.910.910.91-4.01%2,970,475
Mar 3, 20260.920.970.900.950.951.56%3,196,938
Mar 2, 20260.930.960.910.930.93-2.40%1,840,206
Feb 27, 20260.981.000.950.960.96-5.31%2,595,522
Feb 26, 20261.011.030.971.011.012.01%2,267,939
Feb 25, 20260.951.020.930.990.996.44%3,162,889
Feb 24, 20260.910.950.910.930.932.01%1,370,156
Feb 23, 20260.940.950.900.910.91-3.07%1,888,673
Feb 20, 20260.960.960.930.940.94-2.07%1,754,682
Feb 19, 20260.900.980.890.960.965.99%3,993,492
Feb 18, 20260.960.980.900.910.91-3.45%4,913,424