
Quantum-Si (QSI) Market Capitalization Overview
Market Cap: $210.21M as of May 4, 2026
$210.21M
$48.41M (29.91%)past month
As of May 4, 2026, Quantum-Si (QSI) has a market capitalization of $210.21M. Over the past 30 days, its market cap has increased by 28.17%, while in the last 12 months, it has decreased by -11.32%.
Market capitalization represents the total value of Quantum-Si as perceived by the stock market. It is calculated by multiplying the current stock price by the total number of outstanding shares.
Quantum-Si (QSI) Market Cap Formula = Stock Price * Shares Outstanding
The market cap of Quantum-Si (QSI)helps investors assess the company's size and compare it with competitors for better investment decisions.
Market capitalization represents the total value of Quantum-Si as perceived by the stock market. It is calculated by multiplying the current stock price by the total number of outstanding shares.
Quantum-Si (QSI) Market Cap Formula = Stock Price * Shares Outstanding
The market cap of Quantum-Si (QSI)helps investors assess the company's size and compare it with competitors for better investment decisions.
Quantum-Si (QSI) Market Cap & Key Trends
See Quantum-Si’s latest market capitalization, historical trends, and financial insights with AI-powered fundamental data and custom analysis.
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Quantum-Si (QSI) Market Cap History
| Date | Market Cap | Change |
|---|---|---|
| May 1, 2026 | $207.33M | +28.17% |
| Apr 1, 2026 | $161.76M | -19.58% |
| Mar 2, 2026 | $201.14M | -15.15% |
| Feb 2, 2026 | $237.04M | -5.17% |
| Jan 2, 2026 | $249.97M | -10.08% |
Quantum-Si (QSI) End of Year Market Cap History
| Date | Market Cap | Change |
|---|---|---|
| 2026 | $210.21M | -11.32% |
| 2025 | $237.04M | -38.48% |
| 2024 | $385.33M | +35.26% |
| 2023 | $284.88M | +11.34% |
| 2022 | $255.87M | -76.16% |
| 2021 | $1.08B | — |
FAQs About Quantum-Si (QSI) Market Cap
As of May 4, 2026, the market capitalization of Quantum-Si (QSI) is $210.21M. Market cap represents the total value of a company’s outstanding shares and is a key indicator of its size in the stock market.
In the last 30 days, Quantum-Si’s market capitalization has increased by 29.91%, changing from $161.81M to $210.21M as of May 4, 2026.
In the last 3 months, Quantum-Si’s market capitalization has increased by —, changing from – to – as of –.
In the year 2025, Quantum-Si’s market capitalization decreased from $385.33M in January to $237.04M in December, reflecting a -38.48% change.
In the past five years, Quantum-Si (QSI) has had a compound annual growth rate (CAGR) of -26.07% in market capitalization. This means its market cap has shrunk at an average rate of -26.07% per year.