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QSI
Quantum-Si Incorporated Class A Common Stock
stock NASDAQ

Market Open

Dec 31, 2025 9:46:18 AM EST

1.11USD-0.450%(0.00)732,271

1.10Bid 1.11Ask 0.01Spread

Pre-market

Dec 31, 2025 9:27:30 AM EST

1.11USD0.000%(0.00)150,248

After-hours

Dec 30, 2025 4:56:30 PM EST

1.12USD+1.764%(+0.02)0

OverviewOptionsHistoricalExchange VolumeShortsMore

QSI Volume Dec 31, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	66.38	5,280,380	59.04
Nasdaq GSM	12.73	1,012,784	16.59
NYSE Arca	6.79	539,897	7.70
Cboe EDGX	5.01	398,427	4.42
Cboe BZX	2.25	178,991	3.06
IEX	2.00	159,335	2.72
NYSE	1.59	126,576	2.78
MEMX	1.08	86,286	1.13
MIAX Pearl	0.62	49,612	0.76
Cboe BYX	0.43	34,545	0.62
Cboe EDGA	0.37	29,066	0.48
Nasdaq BX	0.25	20,117	0.17
NYSE American	0.20	15,904	0.11
NYSE National	0.16	12,710	0.22
CHX	0.09	7,303	0.09
Nasdaq PHLX	0.03	2,747	0.12

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

QSI Nutrition Facts

1.70 servings per container

Serving size

4.69M

Calories

7.95M

% Day

% Avg

Off Exchange¹ 5M

66.38%

59.04%

Nasdaq GSM 1M

12.73%

16.59%

NYSE Arca 540K

6.79%

7.70%

Cboe EDGX 398K

5.01%

4.42%

Cboe BZX 179K

2.25%

3.06%

IEX 159K

2.00%

2.72%

NYSE 127K

1.59%

2.78%

MEMX 86K

1.08%

1.13%

MIAX Pearl 50K

0.62%

0.76%

Cboe BYX 35K

0.43%

0.62%

Cboe EDGA 29K

0.37%

0.48%

Nasdaq BX 20K

0.25%

0.17%

NYSE American 16K

0.20%

0.11%

NYSE National 13K

0.16%

0.22%

CHX 7K

0.09%

Nasdaq PHLX 3K

0.03%

0.12%

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 5,280,380, which is 66.38% of today's total volume.
Today's Lit volume is 2,674,300, which is 33.62%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 59.04%.
The average Lit volume has been 40.96%.

QSI Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe EDGX

Cboe BZX

IEX

NYSE

MEMX

MIAX Pearl

Cboe BYX

Cboe EDGA