Market Cap

$239.73M

Current · Retrieved: Oct 23, 2026 · USD

QSI Market Cap

Current$239.73MretrievedOct 23, 2026

QSI Market Cap ($1.97B → $239.73M · CAGR -29.8%)

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
Aug 26, 2024	188,999,091
Aug 23, 2024	200,935,876
Aug 22, 2024	186,890,259
Aug 21, 2024	200,935,876
Aug 20, 2024	194,967,483
Aug 19, 2024	198,807,149
Aug 16, 2024	193,913,067
Aug 15, 2024	202,925,340
Aug 14, 2024	175,192,210
Aug 13, 2024	181,061,129
Aug 12, 2024	165,145,416
Aug 9, 2024	176,465,467
Aug 8, 2024	168,607,084
Aug 7, 2024	163,136,058
Aug 6, 2024	173,381,798
Aug 5, 2024	164,946,470
Aug 2, 2024	176,445,572
Aug 1, 2024	196,738,106
Jul 31, 2024	216,851,589
Jul 30, 2024	206,904,268
Jul 29, 2024	210,883,196
Jul 26, 2024	220,830,517
Jul 25, 2024	228,788,373
Jul 24, 2024	206,904,268
Jul 23, 2024	224,809,445
Jul 22, 2024	222,819,981
Jul 19, 2024	204,914,804
Jul 18, 2024	216,851,589
Jul 17, 2024	230,777,837
Jul 16, 2024	242,714,622
Jul 15, 2024	214,862,125
Jul 12, 2024	212,872,660
Jul 11, 2024	214,862,125
Jul 10, 2024	178,992,087
Jul 9, 2024	182,791,963
Jul 8, 2024	190,133,086
Jul 5, 2024	184,880,900
Jul 3, 2024	190,232,559
Jul 2, 2024	189,416,879
Jul 1, 2024	185,895,527
Jun 28, 2024	208,893,732
Jun 27, 2024	187,009,627
Jun 26, 2024	166,876,250
Jun 25, 2024	232,767,302
Jun 24, 2024	238,735,694
Jun 21, 2024	236,746,230
Jun 20, 2024	260,619,799
Jun 18, 2024	260,619,799
Jun 17, 2024	264,598,727
Jun 14, 2024	272,556,584
Jun 13, 2024	286,482,833
Jun 12, 2024	302,398,546
Jun 11, 2024	290,461,761
Jun 10, 2024	288,472,297
Jun 7, 2024	294,440,689
Jun 6, 2024	308,366,938
Jun 5, 2024	314,335,330
Jun 4, 2024	300,409,082
Jun 3, 2024	298,419,617
May 31, 2024	302,398,546
May 30, 2024	310,356,402
May 29, 2024	312,345,866
May 28, 2024	314,335,330
May 24, 2024	322,293,187
May 23, 2024	330,251,043
May 22, 2024	350,145,684
May 21, 2024	344,177,292
May 20, 2024	352,135,149
May 17, 2024	358,103,541
May 16, 2024	370,040,326
May 15, 2024	370,040,326
May 14, 2024	364,071,933
May 13, 2024	342,187,828
May 10, 2024	338,208,900
May 9, 2024	364,071,933
May 8, 2024	358,103,541
May 7, 2024	354,124,613
May 6, 2024	366,061,397
May 3, 2024	366,061,397
May 2, 2024	350,145,684
May 1, 2024	358,103,541
Apr 30, 2024	320,303,723
Apr 29, 2024	334,229,972
Apr 26, 2024	328,261,579
Apr 25, 2024	320,303,723
Apr 24, 2024	332,240,507
Apr 23, 2024	338,208,900
Apr 22, 2024	322,293,187
Apr 19, 2024	312,345,866
Apr 18, 2024	300,409,082
Apr 17, 2024	304,388,010
Apr 16, 2024	326,272,115
Apr 15, 2024	330,251,043
Apr 12, 2024	336,219,436
Apr 11, 2024	362,082,469
Apr 10, 2024	364,071,933
Apr 9, 2024	376,008,718
Apr 8, 2024	362,082,469
Apr 5, 2024	362,082,469
Apr 4, 2024	358,103,541