Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 1,139,812 |
| Open | 1.170 |
| Bid (Size) | 1.180 (3,000) |
| Ask (Size) | 1.190 (2,800) |
| 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
53.2% below 52-week high
1.180
0.6952W Low
2.5252W High
1 Week
15.1% 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 $1.18, 53.2% below its 52-week high. Over the past week it ranged between $1.01 and $1.39.
Past 12 Months
1W
-$0.13
1M
+$0.42
3M
+$0.38
6M
+$0.12
YTD
+$0.02
1Y
-$1.16
QSI was -49.6% over the past year, +11.3% over six months, +1.7% year to date, -9.9% in the last week.
12 Months vs Market
QSI
-49.6%
DIA
+12.1%
SPY
+13.7%
QQQ
+16.0%
IWM
+11.6%
Over the past 12 months QSI returned -49.6% versus DIA (Dow) +12.1%, SPY (S&P 500) +13.7%, QQQ (Nasdaq 100) +16.0% and IWM (Russell 2000) +11.6%.
Volume & Liquidity
0.22× 3-mo avg
Today 1,139,812
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 1,139,812 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 1.180
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 11:00 AM ET
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