Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 7,690,625 |
| Open | 1.330 |
| Bid (Size) | 1.110 (1,800) |
| Ask (Size) | 1.120 (2,900) |
| Prev. Close | 1.310 |
| Today's Range | 1.100 - 1.330 |
| 52wk Range | 0.6900 - 2.730 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
59.0% below 52-week high
1.120
0.6952W Low
2.7352W High
1 Week
24.1% below 1-week high
1.101W Low
1.481W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.73 over the past 52 weeks and last traded at $1.12, 59.0% below its 52-week high. Over the past week it ranged between $1.10 and $1.48.
Past 12 Months
1W
-$0.24
1M
+$0.35
3M
+$0.30
6M
+$0.11
YTD
-$0.04
1Y
-$1.16
QSI was -50.9% over the past year, +10.9% over six months, -3.4% year to date, -17.6% in the last week.
12 Months vs Market
QSI
-50.9%
DIA
+12.4%
SPY
+14.9%
QQQ
+17.5%
IWM
+11.1%
Over the past 12 months QSI returned -50.9% versus DIA (Dow) +12.4%, SPY (S&P 500) +14.9%, QQQ (Nasdaq 100) +17.5% and IWM (Russell 2000) +11.1%.
Volume & Liquidity
1.50× 3-mo avg
Today 7,690,625
3-mo avg 5.1M
1W
7.8M
1M
10.2M
3M
5.1M
6M
5.5M
YTD
5.1M
1Y
5.4M
QSI most recently traded 7,690,625 shares against a 3-month average daily volume of 5.1M.
More News
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August 13, 2026
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August 13, 2026
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May 08, 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 1.120
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/16/26 04:00 PM ET