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

1.120 -0.190 (-14.50%)
Delayed Quote Updated: 4:00 PM EDT, Oct 16, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 7,690,625
Open 1.330
Bid (Size) 1.110 (1,800)
Ask (Size) 1.120 (2,900)
Prev. Close 1.310
Today's Range 1.100 - 1.330
52wk Range 0.6900 - 3.100
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 63.9% below 52-week high
1.120
0.6952W Low 3.1052W High
1 Week 24.1% below 1-week high
1.101W Low 1.481W 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 $1.12, 63.9% below its 52-week high. Over the past week it ranged between $1.10 and $1.48.

Past 12 Months
-17.6%
+53.4%
+36.2%
+4.7%
-3.4%
-55.9%
1W -$0.24
1M +$0.39
3M +$0.30
6M +$0.05
YTD -$0.04
1Y -$1.42

QSI was -55.9% over the past year, +4.7% over six months, -3.4% year to date, -17.6% in the last week.

12 Months vs Market
QSI
-55.9%
DIA
+13.0%
SPY
+15.5%
QQQ
+18.3%
IWM
+10.4%

Over the past 12 months QSI returned -55.9% versus DIA (Dow) +13.0%, SPY (S&P 500) +15.5%, QQQ (Nasdaq 100) +18.3% and IWM (Russell 2000) +10.4%.

Volume & Liquidity 1.51× 3-mo avg
Today 7,690,625 3-mo avg 5.1M
1W
7.8M
1M
9.8M
3M
5.1M
6M
5.5M
YTD
5.1M
1Y
5.6M

QSI most recently traded 7,690,625 shares against a 3-month average daily volume of 5.1M.

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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 1.120
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/16/26 04:00 PM ET
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