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

1.391 -0.139 (-9.09%)
Delayed Quote Updated: 11:35 AM EDT, Oct 12, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 6,736,106
Open 1.475
Bid (Size) 1.390 (9,900)
Ask (Size) 1.400 (7,500)
Prev. Close 1.530
Today's Range 1.370 - 1.475
52wk Range 0.6900 - 3.100
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 55.1% below 52-week high
1.391
0.6952W Low 3.1052W High
1 Week 16.2% 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 $1.39, 55.1% below its 52-week high. Over the past week it ranged between $1.09 and $1.66.

Past 12 Months
+8.7%
+88.0%
+60.0%
+76.4%
+19.9%
-33.1%
1W +$0.11
1M +$0.65
3M +$0.52
6M +$0.60
YTD +$0.23
1Y -$0.69

QSI was -33.1% over the past year, +76.4% over six months, +19.9% year to date, +8.7% in the last week.

12 Months vs Market
QSI
-33.1%
DIA
+12.5%
SPY
+17.4%
QQQ
+23.9%
IWM
+13.9%

Over the past 12 months QSI returned -33.1% versus DIA (Dow) +12.5%, SPY (S&P 500) +17.4%, QQQ (Nasdaq 100) +23.9% and IWM (Russell 2000) +13.9%.

Volume & Liquidity 1.42× 3-mo avg
Today 6,736,106 3-mo avg 4.7M
1W
16.5M
1M
9.1M
3M
4.7M
6M
5.5M
YTD
5.0M
1Y
6.0M

QSI most recently traded 6,736,106 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 1.391
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/12/26 11:35 AM ET
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