Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 40,903,975 |
| Open | 1.260 |
| Bid (Size) | 1.540 (300) |
| Ask (Size) | 1.550 (1,700) |
| Prev. Close | 1.220 |
| Today's Range | 1.258 - 1.660 |
| 52wk Range | 0.6900 - 3.100 |
| Shares Outstanding | N/A |
| Dividend Yield | N/A |
Top News
More News
These stocks are moving in today's session ↗
October 09, 2026
Performance
52-Week Range
50.6% below 52-week high
1.530
0.6952W Low
3.1052W High
1 Week
7.8% below 1-week high
1.091W Low
1.661W 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 $1.53, 50.6% below its 52-week high. Over the past week it ranged between $1.09 and $1.66.
Past 12 Months
1W
+$0.25
1M
+$0.79
3M
+$0.66
6M
+$0.74
YTD
+$0.37
1Y
-$0.14
QSI was -8.4% over the past year, +94.0% over six months, +31.9% year to date, +19.5% in the last week.
12 Months vs Market
QSI
-8.4%
DIA
+13.5%
SPY
+19.2%
QQQ
+27.4%
IWM
+17.3%
Over the past 12 months QSI returned -8.4% versus DIA (Dow) +13.5%, SPY (S&P 500) +19.2%, QQQ (Nasdaq 100) +27.4% and IWM (Russell 2000) +17.3%.
Volume & Liquidity
8.64× 3-mo avg
Today 40,903,975
3-mo avg 4.7M
1W
16.5M
1M
8.8M
3M
4.7M
6M
5.5M
YTD
5.0M
1Y
6.0M
QSI most recently traded 40,903,975 shares against a 3-month average daily volume of 4.7M.
More News
Read More
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October 06, 2026
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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 1.530
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/09/26 04:00 PM ET
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