Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 16,529,715 |
| Open | 1.500 |
| Bid (Size) | 1.630 (72,800) |
| Ask (Size) | 1.660 (3,000) |
| Prev. Close | 1.460 |
| Today's Range | 1.495 - 1.750 |
| 52wk Range | 0.6900 - 2.420 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
31.8% below 52-week high
1.650
0.6952W Low
2.4252W High
1 Week
5.7% below 1-week high
1.151W Low
1.751W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.42 over the past 52 weeks and last traded at $1.65, 31.8% below its 52-week high. Over the past week it ranged between $1.15 and $1.75.
Past 12 Months
1W
+$0.42
1M
+$0.85
3M
+$0.89
6M
+$0.74
YTD
+$0.49
1Y
-$0.69
QSI was -29.5% over the past year, +80.9% over six months, +42.2% year to date, +34.1% in the last week.
12 Months vs Market
QSI
-29.5%
DIA
+10.1%
SPY
+12.3%
QQQ
+14.8%
IWM
+11.9%
Over the past 12 months QSI returned -29.5% versus DIA (Dow) +10.1%, SPY (S&P 500) +12.3%, QQQ (Nasdaq 100) +14.8% and IWM (Russell 2000) +11.9%.
Volume & Liquidity
2.86× 3-mo avg
Today 16,529,715
3-mo avg 5.8M
1W
9.1M
1M
12.3M
3M
5.8M
6M
5.6M
YTD
5.2M
1Y
5.3M
QSI most recently traded 16,529,715 shares against a 3-month average daily volume of 5.8M.
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 1.650
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/27/26 04:00 PM ET
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