Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 11,461,198 |
| Open | 1.150 |
| Bid (Size) | 1.410 (6,300) |
| Ask (Size) | 1.420 (400) |
| 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
42.6% below 52-week high
1.400
0.6952W Low
2.4452W High
1 Week
1.4% below 1-week high
1.011W Low
1.421W 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 $1.40, 42.6% below its 52-week high. Over the past week it ranged between $1.01 and $1.42.
Past 12 Months
1W
+$0.31
1M
+$0.64
3M
+$0.63
6M
+$0.49
YTD
+$0.24
1Y
-$0.80
QSI was -36.4% over the past year, +54.6% over six months, +20.7% year to date, +28.4% in the last week.
12 Months vs Market
QSI
-36.4%
DIA
+11.6%
SPY
+13.1%
QQQ
+15.4%
IWM
+11.9%
Over the past 12 months QSI returned -36.4% versus DIA (Dow) +11.6%, SPY (S&P 500) +13.1%, QQQ (Nasdaq 100) +15.4% and IWM (Russell 2000) +11.9%.
Volume & Liquidity
2.11× 3-mo avg
Today 11,461,198
3-mo avg 5.4M
1W
6.7M
1M
10.9M
3M
5.4M
6M
5.5M
YTD
5.1M
1Y
5.3M
QSI most recently traded 11,461,198 shares against a 3-month average daily volume of 5.4M.
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 1.400
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 04:00 PM ET