Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 1,351,202 |
| Open | 1.350 |
| Bid (Size) | 1.340 (2,100) |
| Ask (Size) | 1.350 (800) |
| Prev. Close | 1.280 |
| Today's Range | 1.320 - 1.450 |
| 52wk Range | 0.6900 - 1.810 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
25.7% below 52-week high
1.345
0.6952W Low
1.8152W High
1 Week
7.2% below 1-week high
1.081W Low
1.451W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $1.81 over the past 52 weeks and last traded at $1.34, 25.7% below its 52-week high. Over the past week it ranged between $1.08 and $1.45.
Past 12 Months
1W
+$0.05
1M
-$0.02
3M
+$0.52
6M
+$0.40
YTD
+$0.19
1Y
-$0.25
QSI was -15.7% over the past year, +42.4% over six months, +15.9% year to date, +4.3% in the last week.
12 Months vs Market
QSI
-15.7%
DIA
+10.0%
SPY
+10.9%
QQQ
+9.9%
IWM
+15.6%
Over the past 12 months QSI returned -15.7% versus DIA (Dow) +10.0%, SPY (S&P 500) +10.9%, QQQ (Nasdaq 100) +9.9% and IWM (Russell 2000) +15.6%.
Volume & Liquidity
0.21× 3-mo avg
Today 1,351,202
3-mo avg 6.5M
1W
6.5M
1M
7.8M
3M
6.5M
6M
5.7M
YTD
5.3M
1Y
5.2M
QSI most recently traded 1,351,202 shares against a 3-month average daily volume of 6.5M.
More News
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August 20, 2026
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August 13, 2026
Full Transcript: Quantum-Si Q2 2026 Earnings Call ↗
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 1.345
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 11/11/26 09:51 AM ET
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