Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 7,126,063 |
| Open | 1.475 |
| Bid (Size) | 1.390 (5,800) |
| Ask (Size) | 1.400 (6,400) |
| Prev. Close | 1.530 |
| Today's Range | 1.370 - 1.475 |
| 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
55.0% below 52-week high
1.395
0.6952W Low
3.1052W High
1 Week
16.0% 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 $1.40, 55.0% below its 52-week high. Over the past week it ranged between $1.09 and $1.66.
Past 12 Months
1W
+$0.11
1M
+$0.66
3M
+$0.53
6M
+$0.61
YTD
+$0.24
1Y
-$0.69
QSI was -32.9% over the past year, +76.9% over six months, +20.3% year to date, +9.0% in the last week.
12 Months vs Market
QSI
-32.9%
DIA
+12.5%
SPY
+17.5%
QQQ
+24.2%
IWM
+14.0%
Over the past 12 months QSI returned -32.9% versus DIA (Dow) +12.5%, SPY (S&P 500) +17.5%, QQQ (Nasdaq 100) +24.2% and IWM (Russell 2000) +14.0%.
Volume & Liquidity
1.51× 3-mo avg
Today 7,126,063
3-mo avg 4.7M
1W
16.5M
1M
9.1M
3M
4.7M
6M
5.5M
YTD
5.0M
1Y
6.0M
QSI most recently traded 7,126,063 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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October 01, 2026
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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 1.395
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/12/26 12:03 PM ET
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