Quantum-Si incorporated (QSI)
NASDAQ: QSI · Real-Time Price · USD
1.120
-0.190 (-14.50%)
At close: Oct 16, 2026, 4:00 PM EDT
1.130
+0.010 (0.89%)
Pre-market: Oct 19, 2026, 7:18 AM EDT
Quantum-Si incorporated Market Cap
Quantum-Si incorporated has a market cap or net worth of $245.15 million as of October 16, 2026. It is the 19,555th most valuable company in the world and the 3,382nd biggest in the United States. Its market cap has decreased by 53.97% in one year.
Market Cap
245.15M
Enterprise Value
78.54M
1-Year Change
-53.97%
Global Rank
Country Rank
#3,382 United States
Category
ChartMarket Cap Chart
Since November 13, 2020, Quantum-Si incorporated's market cap has increased from $146.03M to $245.15M, an increase of 67.88%. That is a compound annual growth rate of 9.14%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 16, 2026 | 245.15M | 3.42% |
| Dec 31, 2025 | 237.04M | -38.48% |
| Dec 31, 2024 | 385.32M | 35.26% |
| Dec 29, 2023 | 284.87M | 11.34% |
| Dec 30, 2022 | 255.87M | -76.34% |
| Dec 31, 2021 | 1.08B | 620.90% |
| Dec 30, 2020 | Upgrade Pro | Upgrade Pro |
| Nov 13, 2020 | Upgrade Pro | Upgrade Pro |
Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
Related Stocks
| Company | Market Cap |
|---|---|
| CapsoVision | 326.81M |
| ClearPoint Neuro | 276.67M |
| Mobia Medical | 269.32M |
| InfuSystem Holdings | 266.89M |
| Treace Medical Concepts | 251.68M |
| Perspective Therapeutics | 247.71M |
| Standard BioTools | 246.93M |
| Electromed | 227.23M |