Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 3,422,753 |
| Open | 1.160 |
| Bid (Size) | 1.190 (2,000) |
| Ask (Size) | 1.230 (1,700) |
| Prev. Close | 1.160 |
| Today's Range | 1.160 - 1.230 |
| 52wk Range | 0.6900 - 2.520 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
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Performance
52-Week Range
51.2% below 52-week high
1.230
0.6952W Low
2.5252W High
1 Week
11.5% below 1-week high
1.011W Low
1.391W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.52 over the past 52 weeks and last traded at $1.23, 51.2% below its 52-week high. Over the past week it ranged between $1.01 and $1.39.
Past 12 Months
1W
-$0.08
1M
+$0.47
3M
+$0.43
6M
+$0.17
YTD
+$0.07
1Y
-$1.11
QSI was -47.4% over the past year, +16.0% over six months, +6.0% year to date, -6.1% in the last week.
12 Months vs Market
QSI
-47.4%
DIA
+12.5%
SPY
+15.2%
QQQ
+18.6%
IWM
+11.9%
Over the past 12 months QSI returned -47.4% versus DIA (Dow) +12.5%, SPY (S&P 500) +15.2%, QQQ (Nasdaq 100) +18.6% and IWM (Russell 2000) +11.9%.
Volume & Liquidity
0.65× 3-mo avg
Today 3,422,753
3-mo avg 5.3M
1W
7.0M
1M
10.4M
3M
5.3M
6M
5.5M
YTD
5.1M
1Y
5.3M
QSI most recently traded 3,422,753 shares against a 3-month average daily volume of 5.3M.
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August 20, 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 1.230
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/21/26 04:00 PM ET
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