Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)
Price and Volume
Detailed Quote| Volume | 4,474,459 |
| Open | 1.340 |
| Bid (Size) | 1.380 (8,900) |
| Ask (Size) | 1.390 (4,100) |
| Prev. Close | 1.410 |
| Today's Range | 1.330 - 1.440 |
| 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
55.2% below 52-week high
1.390
0.6952W Low
3.1052W High
1 Week
16.3% 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 $1.39, 55.2% 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
+$0.52
6M
+$0.55
YTD
+$0.23
1Y
-$0.69
QSI was -33.2% over the past year, +65.3% over six months, +19.8% year to date, +8.6% in the last week.
12 Months vs Market
QSI
-33.2%
DIA
+11.8%
SPY
+16.0%
QQQ
+21.2%
IWM
+11.0%
Over the past 12 months QSI returned -33.2% versus DIA (Dow) +11.8%, SPY (S&P 500) +16.0%, QQQ (Nasdaq 100) +21.2% and IWM (Russell 2000) +11.0%.
Volume & Liquidity
0.92× 3-mo avg
Today 4,474,459
3-mo avg 4.9M
1W
14.3M
1M
9.4M
3M
4.9M
6M
5.6M
YTD
5.0M
1Y
6.0M
QSI most recently traded 4,474,459 shares against a 3-month average daily volume of 4.9M.
More News
Read More
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October 06, 2026
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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 1.390
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/14/26 03:31 PM ET
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