Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)Price and VolumeDetailed Quote
Top NewsMore News
These stocks are moving in today's session ↗
October 09, 2026
Performance
52-Week Range
57.4% below 52-week high
1.320
0.6952W Low
3.1052W High
1 Week
20.5% below 1-week high
1.201W 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 $1.32, 57.4% below its 52-week high. Over the past week it ranged between $1.20 and $1.66.
Past 12 Months
1W
+$0.10
1M
+$0.60
3M
+$0.46
6M
+$0.27
YTD
+$0.16
1Y
-$0.83
QSI was -38.6% over the past year, +25.7% over six months, +13.8% year to date, +8.2% in the last week.
12 Months vs Market
QSI
DIA
SPY
QQQ
IWM
Over the past 12 months QSI returned -38.6% versus DIA (Dow) +12.4%, SPY (S&P 500) +16.2%, QQQ (Nasdaq 100) +20.9% and IWM (Russell 2000) +10.2%.
Volume & Liquidity
0.80× 3-mo avg
Today 3,964,160
3-mo avg 4.9M
1W
1M
3M
6M
YTD
1Y
QSI most recently traded 3,964,160 shares against a 3-month average daily volume of 4.9M. More NewsRead More
These stocks have an unusual volume in today's session ↗
October 06, 2026
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October 01, 2026
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 QuestionsIs 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 1.320
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/15/26 12:45 PM ET
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