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

1.150 -0.080 (-6.50%)
Delayed Quote Updated: 4:00 PM EDT, Oct 22, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 3,572,183
Open 1.170
Bid (Size) 1.130 (200)
Ask (Size) 1.140 (100)
Prev. Close 1.230
Today's Range 1.145 - 1.210
52wk Range 0.6900 - 2.440
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 52.9% below 52-week high
1.150
0.6952W Low 2.4452W High
1 Week 13.5% below 1-week high
1.011W Low 1.331W High

Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.44 over the past 52 weeks and last traded at $1.15, 52.9% below its 52-week high. Over the past week it ranged between $1.01 and $1.33.

Past 12 Months
+2.7%
+46.6%
+45.6%
+22.3%
-0.9%
-47.7%
1W +$0.03
1M +$0.37
3M +$0.36
6M +$0.21
YTD -$0.01
1Y -$1.05

QSI was -47.7% over the past year, +22.3% over six months, -0.9% year to date, +2.7% in the last week.

12 Months vs Market
QSI
-47.7%
DIA
+13.3%
SPY
+14.4%
QQQ
+16.3%
IWM
+13.7%

Over the past 12 months QSI returned -47.7% versus DIA (Dow) +13.3%, SPY (S&P 500) +14.4%, QQQ (Nasdaq 100) +16.3% and IWM (Russell 2000) +13.7%.

Volume & Liquidity 0.67× 3-mo avg
Today 3,572,183 3-mo avg 5.3M
1W
5.9M
1M
10.5M
3M
5.3M
6M
5.5M
YTD
5.1M
1Y
5.3M

QSI most recently traded 3,572,183 shares against a 3-month average daily volume of 5.3M.

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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 1.150
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/22/26 04:00 PM ET
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