Financial News
Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 8,195,463 |
| Open | 1.490 |
| Bid (Size) | 1.220 (100) |
| Ask (Size) | 1.260 (3,500) |
| Prev. Close | 1.460 |
| Today's Range | 1.230 - 1.500 |
| 52wk Range | 0.6900 - 2.185 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
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Performance
52-Week Range
42.3% below 52-week high
1.260
0.6952W Low
2.1952W High
1 Week
30.4% below 1-week high
1.231W Low
1.811W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.19 over the past 52 weeks and last traded at $1.26, 42.3% below its 52-week high. Over the past week it ranged between $1.23 and $1.81.
Past 12 Months
1W
-$0.39
1M
-$0.02
3M
+$0.51
6M
+$0.29
YTD
+$0.10
1Y
-$0.74
QSI was -37.0% over the past year, +29.7% over six months, +8.6% year to date, -23.6% in the last week.
12 Months vs Market
QSI
-37.0%
DIA
+9.7%
SPY
+10.1%
QQQ
+7.8%
IWM
+13.7%
Over the past 12 months QSI returned -37.0% versus DIA (Dow) +9.7%, SPY (S&P 500) +10.1%, QQQ (Nasdaq 100) +7.8% and IWM (Russell 2000) +13.7%.
Volume & Liquidity
1.33× 3-mo avg
Today 8,195,463
3-mo avg 6.2M
1W
10.6M
1M
10.4M
3M
6.2M
6M
5.7M
YTD
5.3M
1Y
5.3M
QSI most recently traded 8,195,463 shares against a 3-month average daily volume of 6.2M.
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August 13, 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 1.260
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 11/02/26 04:00 PM ET
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