Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 4,731,030 |
| Open | 1.310 |
| Bid (Size) | 1.250 (2,000) |
| Ask (Size) | 1.260 (6,900) |
| Prev. Close | 1.300 |
| Today's Range | 1.210 - 1.330 |
| 52wk Range | 0.6900 - 2.185 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
42.6% below 52-week high
1.255
0.6952W Low
2.1952W High
1 Week
30.7% 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 $1.25, 42.6% below its 52-week high. Over the past week it ranged between $1.23 and $1.81.
Past 12 Months
1W
-$0.47
1M
-$0.03
3M
+$0.49
6M
+$0.29
YTD
+$0.09
1Y
-$0.75
QSI was -37.3% over the past year, +30.6% over six months, +8.2% year to date, -27.0% in the last week.
12 Months vs Market
QSI
-37.3%
DIA
+12.4%
SPY
+12.4%
QQQ
+10.1%
IWM
+15.7%
Over the past 12 months QSI returned -37.3% versus DIA (Dow) +12.4%, SPY (S&P 500) +12.4%, QQQ (Nasdaq 100) +10.1% and IWM (Russell 2000) +15.7%.
Volume & Liquidity
0.76× 3-mo avg
Today 4,731,030
3-mo avg 6.2M
1W
8.3M
1M
10.1M
3M
6.2M
6M
5.8M
YTD
5.3M
1Y
5.3M
QSI most recently traded 4,731,030 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 1.255
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 11/04/26 01:40 PM ET
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