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Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)

2.150 +0.120 (+5.91%)
Streaming Delayed Price Updated: 4:00 PM EDT, Oct 31, 2025 Add to My Watchlist

Historical Prices

Date Open High Low Close Volume Change (%)
Oct 31, 2025 2.040 2.160 2.030 2.150 6,163,771 +0.12(+5.91%)
Oct 30, 2025 2.050 2.120 2.020 2.030 6,716,654 -0.11(-5.14%)
Oct 29, 2025 2.140 2.230 2.090 2.140 7,129,038 -0.04(-1.83%)
Oct 28, 2025 2.310 2.320 2.140 2.180 9,081,197 -0.16(-6.84%)
Oct 27, 2025 2.380 2.420 2.220 2.340 10,240,674 +0.05(+2.18%)
Oct 24, 2025 2.320 2.440 2.260 2.290 11,745,560 +0.09(+4.09%)
Oct 23, 2025 2.380 2.380 2.170 2.200 12,091,353 +0.00(+0.00%)
Oct 22, 2025 2.210 2.340 2.000 2.200 18,363,986 -0.14(-5.98%)
Oct 21, 2025 2.475 2.520 2.270 2.340 15,319,770 -0.25(-9.48%)
Oct 20, 2025 2.420 2.730 2.390 2.585 22,032,710 +0.31(+13.38%)
Oct 17, 2025 2.380 2.525 2.260 2.280 20,988,704 -0.26(-10.24%)
Oct 16, 2025 2.810 3.100 2.500 2.540 49,265,088 -0.09(-3.42%)
Oct 15, 2025 2.450 2.750 2.355 2.630 53,503,456 +0.48(+22.33%)
Oct 14, 2025 2.010 2.260 1.960 2.150 23,689,958 +0.07(+3.37%)
Oct 13, 2025 1.750 2.130 1.730 2.080 33,209,294 +0.41(+24.55%)
Oct 10, 2025 1.810 1.950 1.660 1.670 21,776,930 -0.07(-4.02%)
Oct 09, 2025 1.770 1.800 1.690 1.740 6,817,330 -0.03(-1.69%)
Oct 08, 2025 1.760 1.820 1.700 1.770 8,787,563 +0.00(+0.00%)
Oct 07, 2025 1.850 1.920 1.680 1.770 18,167,112 -0.04(-2.21%)
Oct 06, 2025 1.710 1.870 1.660 1.810 17,189,342 +0.09(+5.23%)
Oct 03, 2025 1.570 1.760 1.560 1.720 19,291,724 +0.18(+11.69%)
Oct 02, 2025 1.490 1.560 1.460 1.540 7,994,275 +0.08(+5.48%)
Oct 01, 2025 1.420 1.500 1.410 1.460 5,474,205 +0.05(+3.55%)
Sep 30, 2025 1.360 1.440 1.350 1.410 5,721,191 +0.02(+1.44%)
Sep 29, 2025 1.400 1.425 1.350 1.390 9,482,767 -0.10(-6.71%)
Sep 26, 2025 1.540 1.610 1.470 1.490 7,822,781 -0.02(-1.32%)
Sep 25, 2025 1.520 1.550 1.440 1.510 10,672,457 -0.10(-6.21%)
Sep 24, 2025 1.640 1.750 1.590 1.610 13,221,169 +0.01(+0.63%)
Sep 23, 2025 1.780 1.790 1.560 1.600 21,250,764 -0.10(-5.88%)
Sep 22, 2025 1.520 1.730 1.430 1.700 24,817,220 +0.20(+13.33%)
Sep 19, 2025 1.470 1.600 1.450 1.500 23,200,224 -0.03(-1.96%)
Sep 18, 2025 1.310 1.640 1.308 1.530 37,112,208 +0.27(+21.43%)
Sep 17, 2025 1.300 1.340 1.240 1.260 10,286,386 -0.07(-5.26%)
Sep 16, 2025 1.290 1.340 1.250 1.330 7,274,653 +0.07(+5.56%)
Sep 15, 2025 1.200 1.290 1.180 1.260 8,864,964 +0.08(+6.78%)
Sep 12, 2025 1.220 1.260 1.170 1.180 6,110,619 -0.02(-1.67%)
Sep 11, 2025 1.110 1.220 1.110 1.200 7,373,390 +0.08(+7.14%)
Sep 10, 2025 1.150 1.155 1.080 1.120 4,205,076 -0.03(-2.61%)
Sep 09, 2025 1.060 1.160 1.060 1.150 3,984,695 +0.09(+8.49%)
Sep 08, 2025 1.090 1.100 1.040 1.060 4,080,056 -0.01(-1.40%)
Sep 05, 2025 1.070 1.100 1.030 1.075 3,433,262 +0.00(+0.47%)
Sep 04, 2025 1.070 1.080 1.030 1.070 3,697,445 +0.00(+0.00%)
Sep 03, 2025 1.080 1.110 1.030 1.070 3,826,359 -0.01(-0.93%)
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