Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 8,036,984 |
| Open | 1.170 |
| Bid (Size) | 1.290 (500) |
| Ask (Size) | 1.300 (3,000) |
| Prev. Close | 1.220 |
| Today's Range | 1.090 - 1.310 |
| 52wk Range | 0.6900 - 3.100 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
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Performance
52-Week Range
58.7% below 52-week high
1.280
0.6952W Low
3.1052W High
1 Week
17.4% below 1-week high
1.091W Low
1.551W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $3.10 over the past 52 weeks and last traded at $1.28, 58.7% below its 52-week high. Over the past week it ranged between $1.09 and $1.55.
Past 12 Months
1W
-$0.15
1M
+$0.52
3M
+$0.37
6M
+$0.53
YTD
+$0.12
1Y
-$0.49
QSI was -27.7% over the past year, +70.6% over six months, +10.3% year to date, -10.5% in the last week.
12 Months vs Market
QSI
-27.7%
DIA
+9.7%
SPY
+16.2%
QQQ
+25.3%
IWM
+13.7%
Over the past 12 months QSI returned -27.7% versus DIA (Dow) +9.7%, SPY (S&P 500) +16.2%, QQQ (Nasdaq 100) +25.3% and IWM (Russell 2000) +13.7%.
Volume & Liquidity
1.97× 3-mo avg
Today 8,036,984
3-mo avg 4.1M
1W
17.5M
1M
6.7M
3M
4.1M
6M
5.2M
YTD
4.8M
1Y
5.9M
QSI most recently traded 8,036,984 shares against a 3-month average daily volume of 4.1M.
More News
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August 20, 2026
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August 13, 2026
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May 08, 2026
Quantum-Si (QSI) Q1 2026 Earnings Transcript ↗
May 07, 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 1.280
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/07/26 04:00 PM ET
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