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Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)

1.310 -0.080 (-5.76%)
Delayed Quote Updated: 4:00 PM EDT, Oct 15, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 9,269,429
Open 1.350
Bid (Size) 1.300 (1,200)
Ask (Size) 1.340 (100)
Prev. Close 1.390
Today's Range 1.240 - 1.390
52wk Range 0.6900 - 3.100
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 57.7% below 52-week high
1.310
0.6952W Low 3.1052W High
1 Week 21.1% below 1-week high
1.241W 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 $1.31, 57.7% below its 52-week high. Over the past week it ranged between $1.24 and $1.66.

Past 12 Months
-14.4%
+81.9%
+59.9%
+26.0%
+12.9%
-50.2%
1W -$0.22
1M +$0.59
3M +$0.49
6M +$0.27
YTD +$0.15
1Y -$1.32

QSI was -50.2% over the past year, +26.0% over six months, +12.9% year to date, -14.4% in the last week.

12 Months vs Market
QSI
-50.2%
DIA
+12.6%
SPY
+16.0%
QQQ
+20.9%
IWM
+9.9%

Over the past 12 months QSI returned -50.2% versus DIA (Dow) +12.6%, SPY (S&P 500) +16.0%, QQQ (Nasdaq 100) +20.9% and IWM (Russell 2000) +9.9%.

Volume & Liquidity 1.84× 3-mo avg
Today 9,269,429 3-mo avg 5.0M
1W
14.4M
1M
9.5M
3M
5.0M
6M
5.5M
YTD
5.1M
1Y
5.8M

QSI most recently traded 9,269,429 shares against a 3-month average daily volume of 5.0M.

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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 1.310
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 04:00 PM ET
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