Market Cap

$228.79M

Current · Retrieved: Oct 23, 2026 · USD

QSI Market Cap

Current$228.79MretrievedOct 23, 2026

QSI Market Cap ($1.97B → $228.79M · CAGR -30.4%)

Latest values, visible window

High-resolution chart · PNG

QSI market cap history

Daily history. Dates identify market observations.

Quantum Si Inc Class A Market Cap — Daily history
Date	Market Cap
Jun 5, 2026	208,893,733
Jun 4, 2026	254,651,408
Jun 3, 2026	236,746,230
Jun 2, 2026	246,693,551
Jun 1, 2026	234,756,766
May 29, 2026	236,746,230
May 28, 2026	238,735,695
May 27, 2026	224,809,446
May 26, 2026	214,862,125
May 24, 2026	210,883,197
May 23, 2026	196,956,948
May 22, 2026	210,883,197
May 21, 2026	196,956,948
May 20, 2026	174,217,373
May 19, 2026	171,292,861
May 18, 2026	169,880,341
May 17, 2026	185,597,108
May 16, 2026	185,597,108
May 15, 2026	177,082,201
May 14, 2026	185,597,108
May 13, 2026	184,900,795
May 12, 2026	187,904,886
May 11, 2026	183,468,381
May 10, 2026	180,444,396
May 9, 2026	180,444,396
May 8, 2026	180,364,817
May 7, 2026	195,086,852
May 6, 2026	204,914,805
May 5, 2026	191,247,186
May 4, 2026	193,276,439
May 1, 2026	190,630,452
Apr 30, 2026	195,086,852
Apr 29, 2026	172,048,857
Apr 28, 2026	181,439,128
Apr 27, 2026	179,111,455
Apr 24, 2026	180,205,660
Apr 23, 2026	187,128,995
Apr 22, 2026	204,914,805
Apr 21, 2026	194,370,645
Apr 20, 2026	200,935,876
Apr 17, 2026	212,872,661
Apr 16, 2026	206,904,269
Apr 15, 2026	208,893,733
Apr 14, 2026	167,274,143
Apr 13, 2026	156,909,035
Apr 10, 2026	147,319,818
Apr 9, 2026	148,593,075
Apr 8, 2026	149,309,282
Apr 7, 2026	141,530,478
Apr 6, 2026	145,051,829
Apr 2, 2026	148,772,127
Apr 1, 2026	148,732,338
Mar 31, 2026	153,984,523
Mar 30, 2026	146,782,663
Mar 27, 2026	152,014,954
Mar 26, 2026	160,887,964
Mar 25, 2026	172,088,647
Mar 24, 2026	169,323,291
Mar 23, 2026	178,653,878
Mar 20, 2026	168,129,613
Mar 19, 2026	171,352,545
Mar 18, 2026	175,550,314
Mar 17, 2026	185,059,953
Mar 16, 2026	187,705,940
Mar 13, 2026	188,919,513
Mar 12, 2026	194,171,698
Mar 11, 2026	208,893,733
Mar 10, 2026	206,904,269
Mar 9, 2026	184,204,483
Mar 6, 2026	171,452,018
Mar 5, 2026	180,941,762
Mar 4, 2026	181,041,235
Mar 3, 2026	188,601,199
Mar 2, 2026	185,696,581
Feb 27, 2026	190,272,349
Feb 26, 2026	200,935,876
Feb 25, 2026	196,976,843
Feb 24, 2026	187,168,785
Feb 23, 2026	187,168,785
Feb 20, 2026	187,168,785
Feb 19, 2026	191,127,818
Feb 18, 2026	180,325,028
Feb 17, 2026	186,770,892
Feb 13, 2026	197,076,316
Feb 12, 2026	193,992,647
Feb 11, 2026	206,904,269
Feb 10, 2026	218,841,053
Feb 9, 2026	212,872,661
Feb 6, 2026	212,872,661
Feb 5, 2026	185,437,951
Feb 4, 2026	204,914,805
Feb 3, 2026	216,851,589
Feb 2, 2026	218,841,053
Jan 30, 2026	224,809,446
Jan 29, 2026	232,767,302
Jan 28, 2026	238,735,695
Jan 27, 2026	244,704,087
Jan 26, 2026	240,725,159
Jan 23, 2026	248,683,015
Jan 22, 2026	260,619,800