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Quantum-Si Incorporated Class A Share Price
Quantum-Si Incorporated Class A Share Price

Quantum-Si Incorporated Class A Share Price

NASDAQ: QSI | Micro Cap
$1.22
-$0.06 (-4.71%) Last updated on 09 Oct, 2026 | 01:29 IST
  • Performance
  • Chart
  • Fundamentals
  • Quarterly P&L
  • Annual P&L
  • About
  • Price history
  • FAQs

Quantum-Si Incorporated Class A Stock Performance

Open
$1.29
Prev. Close
$1.27
Circuit Range
N/A
Day Range
$1.21 - $1.29
Year Range
$0.69 - $3.09
Volume
1,29,593
Average Traded
$1.24

Quantum-Si Incorporated Class A Share Price Today

As of 9 October 2026, Quantum-Si Incorporated Class A's share price is $1.22. The stock opened at $1.29, compared to its previous close of $1.27. During today's trading session, Quantum-Si Incorporated Class A's share price traded between $1.21 and $1.29, with an average price of $1.25. Over the past 52 weeks, the stock has recorded a high of $3.09 and a low of $0.69. In terms of performance, Quantum-Si Incorporated Class A's share price has risen by 23.48% over the last six months and is down 43.22% on a year-on-year basis.

Quantum-Si Incorporated Class A Share Price Chart

$1.21$1.29
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Show Current Price
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Quantum-Si Incorporated Class A Stock Fundamentals & Key Indicators

Market Cap
$240.28M
PE Ratio (TTM)
N/A
Dividend Yield
0.00%
EPS (TTM)
$-0.45
Revenue (TTM)
$2.44B
Return On Equity (TTM)
-54.67%
Profit Margin
-4153.28%
Debt to Equity
0.00
Quarterly Earnings Growth YoY
34.09%

Quantum-Si Incorporated Class A Quarterly Profit & Loss

All figures in USD

ParticularsSep 2025Dec 2025Mar 2026Jun 2026
Revenue$0.55$0.45$0.26$0.34
Net Profit-$35.70-$17.61-$21.67-$23.53
Net Profit Margin-6490.91%-3913.33%-8334.62%-6920.59%
Income ChangeN/A50.67%-23.06%-8.58%

Quantum-Si Incorporated Class A Annual Profit & Loss

All figures in USD

Particulars2022202320242025
Revenue$0.00$1.08$3.06$2.44
Net Profit-$132.44-$95.96-$101.01-$101.34
Net Profit MarginN/A-8885.19%-3300.98%-4153.28%
Income ChangeN/A27.54%-5.26%-0.33%

About Quantum-Si Incorporated Class A

Quantum-Si Inc is a life sciences company focused on proteomics research and analytical technologies. It develops single-molecule detection platforms designed to enable next-generation protein sequencing (NGPS) and large-scale protein analysis. Its technology supports massively parallel sequencing of proteins and can also be applied to the study of nucleic acids, providing tools for researchers and clinical applications in molecular analysis. The company's revenue is derived from sales of products and services.

Quantum-Si Incorporated Class A Historical Returns

MonthOpenCloseChange %
Oct 2026
$1.20
$1.22
+14.08%
Sep 2026
$0.76
$1.06
+32.46%
Aug 2026
$0.72
$0.80
+12.13%
Jul 2026
$0.90
$0.72
-18.98%
Jun 2026
$1.14
$0.89
-25.63%
May 2026
$0.97
$1.19
+20.93%
Apr 2026
$0.79
$0.98
+26.48%
Mar 2026
$0.94
$0.78
-19.38%
Feb 2026
$1.12
$0.96
-15.35%
Jan 2026
$1.13
$1.14
+4.59%
Dec 2025
$1.34
$1.09
-22.97%
Nov 2025
$2.16
$1.42
-33.88%

QSI Share Price FAQs

What is Quantum-Si Incorporated Class A share price today?

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Quantum-Si Incorporated Class A share price today is $1.22 as on October 9, 2026 at 1:29 am IST.

What is the 52 week high and 52 week low of Quantum-Si Incorporated Class A stock?

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The 52 week high of Quantum-Si Incorporated Class A stock is $3.09, while the 52 week low is $0.69 as of 9 Oct '26.

What is QSI's market capitalisation today?

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QSI market capitalisation is $240.28M as of October 9, 2026, at 4:48 pm IST.

What is QSI's net income for the last quarter?

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QSI's net income for the last quarter is -23.53B USD.

What is the 5 year returns of QSI?

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The 5 year returns of QSI is -84.93% as on 9 Oct '26.

What is the high & low stock price of QSI today?

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QSI stock price hit a high of $1.29 and low of $1.21 as of 9 Oct '26.

Can I buy QSI shares in India?

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Yes. You can buy QSI in India by opening an international trading account.