Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 869 |
| Open | 1.090 |
| Bid (Size) | 1.080 (2,600) |
| Ask (Size) | 1.090 (1,000) |
| Prev. Close | 1.090 |
| Today's Range | 1.090 - 1.090 |
| 52wk Range | 0.6900 - 2.730 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
60.1% below 52-week high
1.090
0.6952W Low
2.7352W High
1 Week
25.3% below 1-week high
1.011W Low
1.461W 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 $1.09, 60.1% below its 52-week high. Over the past week it ranged between $1.01 and $1.46.
Past 12 Months
1W
-$0.32
1M
+$0.33
3M
+$0.27
6M
+$0.08
YTD
-$0.07
1Y
-$1.49
QSI was -57.8% over the past year, +7.9% over six months, -6.0% year to date, -22.7% in the last week.
12 Months vs Market
QSI
-57.8%
DIA
+11.1%
SPY
+14.2%
QQQ
+17.5%
IWM
+9.3%
Over the past 12 months QSI returned -57.8% versus DIA (Dow) +11.1%, SPY (S&P 500) +14.2%, QQQ (Nasdaq 100) +17.5% and IWM (Russell 2000) +9.3%.
Volume & Liquidity
0.00× 3-mo avg
Today 869
3-mo avg 5.2M
1W
7.4M
1M
10.9M
3M
5.2M
6M
5.6M
YTD
5.1M
1Y
5.4M
QSI most recently traded 869 shares against a 3-month average daily volume of 5.2M.
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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 1.090
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/19/26 04:00 PM ET
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