Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 3,003,878 |
| Open | 1.270 |
| Bid (Size) | 1.310 (3,800) |
| Ask (Size) | 1.320 (7,300) |
| 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
39.8% below 52-week high
1.315
0.6952W Low
2.1952W High
1 Week
27.3% 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 $1.31, 39.8% below its 52-week high. Over the past week it ranged between $1.23 and $1.81.
Past 12 Months
1W
-$0.33
1M
+$0.03
3M
+$0.57
6M
+$0.34
YTD
+$0.16
1Y
-$0.69
QSI was -34.2% over the past year, +35.4% over six months, +13.4% year to date, -20.3% in the last week.
12 Months vs Market
QSI
-34.2%
DIA
+9.4%
SPY
+10.7%
QQQ
+8.7%
IWM
+14.6%
Over the past 12 months QSI returned -34.2% versus DIA (Dow) +9.4%, SPY (S&P 500) +10.7%, QQQ (Nasdaq 100) +8.7% and IWM (Russell 2000) +14.6%.
Volume & Liquidity
0.49× 3-mo avg
Today 3,003,878
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 3,003,878 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 1.315
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 01:38 PM ET
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