Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 5,766,676 |
| Open | 1.490 |
| Bid (Size) | 1.250 (3,500) |
| Ask (Size) | 1.260 (13,500) |
| Prev. Close | 1.460 |
| Today's Range | 1.240 - 1.500 |
| 52wk Range | 0.6900 - 2.185 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
42.8% below 52-week high
1.250
0.6952W Low
2.1952W High
1 Week
30.9% below 1-week high
1.361W Low
1.811W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.19 over the past 52 weeks and last traded at $1.25, 42.8% below its 52-week high. Over the past week it ranged between $1.36 and $1.81.
Past 12 Months
1W
-$0.21
1M
-$0.30
3M
+$0.50
6M
+$0.28
YTD
+$0.09
1Y
-$0.75
QSI was -37.5% over the past year, +28.7% over six months, +7.8% year to date, -14.4% in the last week.
12 Months vs Market
QSI
-37.5%
DIA
+10.2%
SPY
+10.8%
QQQ
+9.1%
IWM
+14.3%
Over the past 12 months QSI returned -37.5% versus DIA (Dow) +10.2%, SPY (S&P 500) +10.8%, QQQ (Nasdaq 100) +9.1% and IWM (Russell 2000) +14.3%.
Volume & Liquidity
0.94× 3-mo avg
Today 5,766,676
3-mo avg 6.1M
1W
11.1M
1M
10.9M
3M
6.1M
6M
5.7M
YTD
5.2M
1Y
5.3M
QSI most recently traded 5,766,676 shares against a 3-month average daily volume of 6.1M.
More News
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August 20, 2026
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August 13, 2026
Frequently Asked Questions
Is Quantum-Si Incorporated - Class A Common Stock publicly traded?
Yes, Quantum-Si Incorporated - Class A Common Stock is publicly traded.
What exchange does Quantum-Si Incorporated - Class A Common Stock trade on?
Quantum-Si Incorporated - Class A Common Stock trades on the Nasdaq Stock Market
What is the ticker symbol for Quantum-Si Incorporated - Class A Common Stock?
The ticker symbol for Quantum-Si Incorporated - Class A Common Stock is QSI on the Nasdaq Stock Market
What is the current price of Quantum-Si Incorporated - Class A Common Stock?
The current price of Quantum-Si Incorporated - Class A Common Stock is 1.250
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 11/02/26 01:47 PM ET
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