Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 5,114,887 |
| Open | 1.290 |
| Bid (Size) | 1.230 (15,700) |
| Ask (Size) | 1.240 (3,400) |
| Prev. Close | 1.280 |
| Today's Range | 1.210 - 1.410 |
| 52wk Range | 0.6900 - 3.100 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
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Performance
52-Week Range
60.3% below 52-week high
1.231
0.6952W Low
3.1052W High
1 Week
20.6% below 1-week high
0.811W Low
1.551W High
Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $3.10 over the past 52 weeks and last traded at $1.23, 60.3% below its 52-week high. Over the past week it ranged between $0.81 and $1.55.
Past 12 Months
1W
+$0.27
1M
+$0.47
3M
+$0.28
6M
+$0.50
YTD
+$0.07
1Y
-$0.58
QSI was -32.0% over the past year, +68.8% over six months, +6.1% year to date, +28.5% in the last week.
12 Months vs Market
QSI
-32.0%
DIA
+10.2%
SPY
+16.1%
QQQ
+25.3%
IWM
+14.2%
Over the past 12 months QSI returned -32.0% versus DIA (Dow) +10.2%, SPY (S&P 500) +16.1%, QQQ (Nasdaq 100) +25.3% and IWM (Russell 2000) +14.2%.
Volume & Liquidity
1.30× 3-mo avg
Today 5,114,887
3-mo avg 3.9M
1W
21.5M
1M
6.6M
3M
3.9M
6M
5.1M
YTD
4.8M
1Y
6.0M
QSI most recently traded 5,114,887 shares against a 3-month average daily volume of 3.9M.
More News
Read More
Thursday's session: gap up and gap down stocks ↗
October 01, 2026
These stocks are moving in today's session ↗
September 29, 2026
Quantum-Si (QSI) Q2 2026 Earnings Call Transcript ↗
August 20, 2026
Quantum-Si Q2 Earnings Call Highlights ↗
August 13, 2026
Full Transcript: Quantum-Si Q2 2026 Earnings Call ↗
August 13, 2026
Quantum-Si Q1 Earnings Call Highlights ↗
May 08, 2026
Quantum-Si (QSI) Q1 2026 Earnings Transcript ↗
May 07, 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 1.231
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/06/26 10:50 AM ET