Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 1,670,004 |
| Open | 1.170 |
| Bid (Size) | 1.180 (5,200) |
| Ask (Size) | 1.190 (3,900) |
| Prev. Close | 1.230 |
| Today's Range | 1.150 - 1.210 |
| 52wk Range | 0.6900 - 2.520 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
52.8% below 52-week high
1.190
0.6952W Low
2.5252W High
1 Week
14.4% 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 $1.19, 52.8% below its 52-week high. Over the past week it ranged between $1.01 and $1.39.
Past 12 Months
1W
-$0.12
1M
+$0.43
3M
+$0.39
6M
+$0.13
YTD
+$0.03
1Y
-$1.15
QSI was -49.2% over the past year, +12.2% over six months, +2.6% year to date, -9.2% in the last week.
12 Months vs Market
QSI
-49.2%
DIA
+12.4%
SPY
+13.8%
QQQ
+15.6%
IWM
+11.9%
Over the past 12 months QSI returned -49.2% versus DIA (Dow) +12.4%, SPY (S&P 500) +13.8%, QQQ (Nasdaq 100) +15.6% and IWM (Russell 2000) +11.9%.
Volume & Liquidity
0.32× 3-mo avg
Today 1,670,004
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 1,670,004 shares against a 3-month average daily volume of 5.3M.
More News
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August 20, 2026
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August 13, 2026
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August 13, 2026
Quantum-Si Q1 Earnings Call Highlights ↗
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 1.190
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/22/26 01:00 PM ET
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