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QSI
Quantum-Si Incorporated Class A Common Stock
stock NASDAQ

Market Open

Sep 30, 2026 11:23:19 AM EDT

1.07USD+11.679%(+0.11)6,176,206

1.10Bid 1.14Ask 0.04Spread

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

OverviewOptionsHistoricalExchange VolumeShortsMore

QSI Volume Sep 30, 2026 11:05:03 AM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	77.55	4,569,459	70.78
Cboe EDGX	6.19	364,944	1.93
NYSE Arca	5.66	333,768	6.12
Nasdaq GSM	5.35	315,344	10.70
Cboe BZX	2.24	131,901	1.74
MEMX	0.96	56,513	3.63
MIAX Pearl	0.42	24,584	0.77
NYSE	0.40	23,352	0.31
IEX	0.25	14,733	0.91
Cboe EDGA	0.21	12,602	1.99
Nasdaq BX	0.21	12,468	0.12
Cboe BYX	0.18	10,466	0.32
NYSE National	0.14	8,396	0.14
Nasdaq PHLX	0.11	6,773	0.10
NYSE American	0.08	4,857	0.07
Texas Stock Exchange LLC	0.02	1,228	0.33
24X National	0.01	610	0.01
CHX	0.01	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

2.12 servings per container

Serving size

2.78M

Calories

5.89M

% Day

% Avg

Off Exchange¹ 5M

77.55%

70.78%

Cboe EDGX 365K

6.19%

1.93%

NYSE Arca 334K

5.66%

6.12%

Nasdaq GSM 315K

5.35%

10.70%

Cboe BZX 132K

2.24%

1.74%

MEMX 57K

0.96%

3.63%

MIAX Pearl 25K

0.42%

0.77%

NYSE 23K

0.40%

0.31%

IEX 15K

0.25%

0.91%

Cboe EDGA 13K

0.21%

1.99%

Nasdaq BX 12K

0.21%

0.12%

Cboe BYX 10K

0.18%

0.32%

NYSE National 8K

0.14%

Nasdaq PHLX 7K

0.11%

0.10%

NYSE American 5K

0.08%

0.07%

Texas Stock Exchange LLC 1K

0.02%

0.33%

24X National 610

0.01%

CHX 501

0.01%

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 4,569,459, which is 77.55% of today's total volume.
Today's Lit volume is 1,323,040, which is 22.45%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 70.78%.
The average Lit volume has been 29.22%.

QSI Volume by Exchange

Off Exchange

Cboe EDGX

NYSE Arca

Nasdaq GSM

Cboe BZX

MEMX

MIAX Pearl

NYSE

IEX

Cboe EDGA

Nasdaq BX