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

1.200 -0.030 (-2.44%)
Delayed Quote Updated: 2:52 PM EDT, Oct 22, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 2,413,418
Open 1.170
Bid (Size) 1.190 (6,900)
Ask (Size) 1.200 (1,600)
Prev. Close 1.230
Today's Range 1.150 - 1.210
52wk Range 0.6900 - 2.520
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 52.4% below 52-week high
1.200
0.6952W Low 2.5252W High
1 Week 13.7% below 1-week high
1.011W Low 1.391W High

Quantum-Si Incorporated - Class A Common Stock (QSI) traded between $0.69 and $2.52 over the past 52 weeks and last traded at $1.20, 52.4% below its 52-week high. Over the past week it ranged between $1.01 and $1.39.

Past 12 Months
-8.4%
+58.8%
+50.0%
+13.2%
+3.4%
-48.7%
1W -$0.11
1M +$0.44
3M +$0.40
6M +$0.14
YTD +$0.04
1Y -$1.14

QSI was -48.7% over the past year, +13.2% over six months, +3.4% year to date, -8.4% in the last week.

12 Months vs Market
QSI
-48.7%
DIA
+12.3%
SPY
+13.5%
QQQ
+15.1%
IWM
+11.7%

Over the past 12 months QSI returned -48.7% versus DIA (Dow) +12.3%, SPY (S&P 500) +13.5%, QQQ (Nasdaq 100) +15.1% and IWM (Russell 2000) +11.7%.

Volume & Liquidity 0.46× 3-mo avg
Today 2,413,418 3-mo avg 5.3M
1W
7.0M
1M
10.4M
3M
5.3M
6M
5.5M
YTD
5.1M
1Y
5.3M

QSI most recently traded 2,413,418 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 1.200
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 02:52 PM ET
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