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

1.530 +0.310 (+25.41%)
Delayed Quote Updated: 4:00 PM EDT, Oct 9, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 40,903,975
Open 1.260
Bid (Size) 1.540 (300)
Ask (Size) 1.550 (1,700)
Prev. Close 1.220
Today's Range 1.258 - 1.660
52wk Range 0.6900 - 3.100
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 50.6% below 52-week high
1.530
0.6952W Low 3.1052W High
1 Week 7.8% below 1-week high
1.091W 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 $1.53, 50.6% below its 52-week high. Over the past week it ranged between $1.09 and $1.66.

Past 12 Months
+19.5%
+107.0%
+76.0%
+94.0%
+31.9%
-8.4%
1W +$0.25
1M +$0.79
3M +$0.66
6M +$0.74
YTD +$0.37
1Y -$0.14

QSI was -8.4% over the past year, +94.0% over six months, +31.9% year to date, +19.5% in the last week.

12 Months vs Market
QSI
-8.4%
DIA
+13.5%
SPY
+19.2%
QQQ
+27.4%
IWM
+17.3%

Over the past 12 months QSI returned -8.4% versus DIA (Dow) +13.5%, SPY (S&P 500) +19.2%, QQQ (Nasdaq 100) +27.4% and IWM (Russell 2000) +17.3%.

Volume & Liquidity 8.64× 3-mo avg
Today 40,903,975 3-mo avg 4.7M
1W
16.5M
1M
8.8M
3M
4.7M
6M
5.5M
YTD
5.0M
1Y
6.0M

QSI most recently traded 40,903,975 shares against a 3-month average daily volume of 4.7M.

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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 1.530
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/09/26 04:00 PM ET
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