Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 9,460,992 |
| Open | 1.155 |
| Bid (Size) | 1.370 (5,200) |
| Ask (Size) | 1.380 (6,500) |
| Prev. Close | 1.150 |
| Today's Range | 1.150 - 1.420 |
| 52wk Range | 0.6900 - 2.440 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
43.6% below 52-week high
1.375
0.6952W Low
2.4452W High
1 Week
1.011W Low
1.331W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.44 over the past 52 weeks and last traded at $1.38, 43.6% below its 52-week high. Over the past week it ranged between $1.01 and $1.33.
Past 12 Months
1W
+$0.25
1M
+$0.59
3M
+$0.58
6M
+$0.43
YTD
+$0.22
1Y
-$0.83
QSI was -37.5% over the past year, +46.2% over six months, +18.5% year to date, +22.8% in the last week.
12 Months vs Market
QSI
-37.5%
DIA
+12.1%
SPY
+13.9%
QQQ
+16.4%
IWM
+13.4%
Over the past 12 months QSI returned -37.5% versus DIA (Dow) +12.1%, SPY (S&P 500) +13.9%, QQQ (Nasdaq 100) +16.4% and IWM (Russell 2000) +13.4%.
Volume & Liquidity
1.78× 3-mo avg
Today 9,460,992
3-mo avg 5.3M
1W
5.9M
1M
10.5M
3M
5.3M
6M
5.5M
YTD
5.1M
1Y
5.3M
QSI most recently traded 9,460,992 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 1.375
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/23/26 03:27 PM ET
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