Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 4,535,591 |
| Open | 1.270 |
| Bid (Size) | 1.270 (700) |
| Ask (Size) | 1.310 (1,000) |
| Prev. Close | 1.260 |
| Today's Range | 1.241 - 1.340 |
| 52wk Range | 0.6900 - 2.185 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
40.5% below 52-week high
1.300
0.6952W Low
2.1952W High
1 Week
28.2% below 1-week high
1.231W 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 $1.30, 40.5% below its 52-week high. Over the past week it ranged between $1.23 and $1.81.
Past 12 Months
1W
-$0.35
1M
+$0.02
3M
+$0.55
6M
+$0.33
YTD
+$0.14
1Y
-$0.70
QSI was -35.0% over the past year, +33.8% over six months, +12.1% year to date, -21.2% in the last week.
12 Months vs Market
QSI
-35.0%
DIA
+9.2%
SPY
+10.4%
QQQ
+8.4%
IWM
+14.0%
Over the past 12 months QSI returned -35.0% versus DIA (Dow) +9.2%, SPY (S&P 500) +10.4%, QQQ (Nasdaq 100) +8.4% and IWM (Russell 2000) +14.0%.
Volume & Liquidity
0.74× 3-mo avg
Today 4,535,591
3-mo avg 6.2M
1W
10.6M
1M
10.4M
3M
6.2M
6M
5.7M
YTD
5.3M
1Y
5.3M
QSI most recently traded 4,535,591 shares against a 3-month average daily volume of 6.2M.
More News
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August 20, 2026
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August 13, 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 1.300
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 11/03/26 04:00 PM ET
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