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QSI
Quantum-Si Incorporated Class A Common Stock
stock NASDAQ

Market Open

Sep 30, 2026 3:12:58 PM EDT

1.09USD+13.767%(+0.13)10,734,946

1.08Bid 1.09Ask 0.01Spread

Pre-market

Sep 30, 2026 9:28:30 AM EDT

0.9677USD+1.002%(+0.0096)100,960

After-hours

Sep 29, 2026 4:59:30 PM EDT

0.9556USD-0.489%(-0.0047)0

OverviewOptionsHistoricalDark Pool LevelsShortsMore

QSI Volume Sep 30, 2026 2:55:00 PM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	78.70	8,164,961	71.23
Cboe EDGX	5.55	575,328	2.07
NYSE Arca	5.50	570,175	6.08
Nasdaq GSM	4.97	515,681	10.40
Cboe BZX	2.28	236,056	1.77
MEMX	0.80	82,922	3.48
NYSE	0.40	41,181	0.32
MIAX Pearl	0.35	36,719	0.74
Nasdaq BX	0.26	26,517	0.13
IEX	0.25	25,890	0.87
Cboe BYX	0.25	25,617	0.32
Cboe EDGA	0.21	21,311	1.90
Texas Stock Exchange LLC	0.15	15,796	0.33
NYSE National	0.14	14,888	0.14
Nasdaq PHLX	0.12	12,280	0.11
NYSE American	0.08	7,836	0.07
24X National	0.01	1,010	0.01
CHX	0.00	501	0.02
LTSE	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

QSI Nutrition Facts

3.73 servings per container

Serving size

2.78M

Calories

10.37M

% Day

% Avg

Off Exchange¹ 8M

78.70%

71.23%

Cboe EDGX 575K

5.55%

2.07%

NYSE Arca 570K

5.50%

6.08%

Nasdaq GSM 516K

4.97%

10.40%

Cboe BZX 236K

2.28%

1.77%

MEMX 83K

0.80%

3.48%

NYSE 41K

0.40%

0.32%

MIAX Pearl 37K

0.35%

0.74%

Nasdaq BX 27K

0.26%

0.13%

IEX 26K

0.25%

0.87%

Cboe BYX 26K

0.25%

0.32%

Cboe EDGA 21K

0.21%

1.90%

Texas Stock Exchange LLC 16K

0.15%

0.33%

NYSE National 15K

0.14%

Nasdaq PHLX 12K

0.12%

0.11%

NYSE American 8K

0.08%

0.07%

24X National 1K

0.01%

CHX 501

0.00%

0.02%

LTSE 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

QSI Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 8,164,961, which is 78.70% of today's total volume.
Today's Lit volume is 2,209,708, which is 21.30%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 71.23%.
The average Lit volume has been 28.77%.

QSI Volume by Exchange

Off Exchange

Cboe EDGX

NYSE Arca

Nasdaq GSM

Cboe BZX

MEMX

NYSE

MIAX Pearl

Nasdaq BX

IEX

Cboe BYX