Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
5.96
-0.23 (-3.72%)
At close: Sep 9, 2026, 4:00 PM EDT
5.88
-0.08 (-1.34%)
After-hours: Sep 9, 2026, 5:15 PM EDT
Upstream Bio Market Cap
Upstream Bio has a market cap or net worth of $326.44 million as of September 9, 2026. Its market cap has decreased by -67.67% in one year.
Market Cap
326.44M
Enterprise Value
66.08M
1-Year Change
-67.67%
Ranking
Category
Stock Price
$5.96
ChartMarket Cap Chart
Since the IPO on October 11, 2024, Upstream Bio's market cap has decreased from $393.35M to $326.44M, a decrease of -17.01%. That is a compound annual growth rate of -9.29%.
| Date | Market Cap | % Change |
|---|---|---|
| Sep 9, 2026 | 326.44M | -77.75% |
| Dec 31, 2025 | 1.47B | 66.51% |
| Dec 31, 2024 | 881.13M | 124.01% |
| Oct 11, 2024 | 393.35M | - |
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
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