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Upstream Bio, Inc.NasdaqGS:UPB Stock Report

Market Cap US$517.0m
Share Price
US$9.72
US$43.57
77.7% undervalued intrinsic discount
1Y52.8%
7D10.7%
Portfolio Value
View

Upstream Bio, Inc.

NasdaqGS:UPB Stock Report

Market Cap: US$517.0m

UPB Community Fair Values

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US$21.53
69.3% undervalued intrinsic discount
Fair Value
Profit Margin
20%
Future PE
27x
Price in 2030
US$34.67

Upstream Bio, Inc. Competitors

Price History & Performance

Summary of share price highs, lows and changes for Upstream Bio
Historical stock prices
Current Share PriceUS$9.72
52 Week HighUS$33.68
52 Week LowUS$5.14
Beta0
1 Month Change26.89%
3 Month Change-62.43%
1 Year Change52.83%
3 Year Changen/a
5 Year Changen/a
Change since IPO-55.82%

Recent News & Updates

Upstream Bio: Hold Rating As Verekitug Faces Competition Among Latest Asthma Data

Feb 12

Recent updates

Upstream Bio: Hold Rating As Verekitug Faces Competition Among Latest Asthma Data

Feb 12

Upstream Bio (NASDAQ:UPB) Is In A Good Position To Deliver On Growth Plans

Jul 27
Upstream Bio (NASDAQ:UPB) Is In A Good Position To Deliver On Growth Plans

Upstream Bio: Verekitug, A Longer-Acting Dupixent? - Key Data Is Imminent

Apr 17

We Think Upstream Bio (NASDAQ:UPB) Can Afford To Drive Business Growth

Apr 12
We Think Upstream Bio (NASDAQ:UPB) Can Afford To Drive Business Growth

Upstream Bio: Treating Respiratory Disorders With TSLP Targeting Differentiation

Dec 16

Upstream Bio: Attractive, But Let's Wait For More Data And Lock-Up Expiry

Dec 07

Shareholder Returns

UPBUS BiotechsUS Market
7D10.7%5.0%3.5%
1Y52.8%40.3%31.0%

Return vs Industry: UPB exceeded the US Biotechs industry which returned 40.3% over the past year.

Return vs Market: UPB exceeded the US Market which returned 31% over the past year.

Price Volatility

Is UPB's price volatile compared to industry and market?
UPB volatility
UPB Average Weekly Movement19.9%
Biotechs Industry Average Movement11.1%
Market Average Movement7.1%
10% most volatile stocks in US Market16.2%
10% least volatile stocks in US Market3.3%

Stable Share Price: UPB's share price has been volatile over the past 3 months compared to the US market.

Volatility Over Time: UPB's weekly volatility has increased from 14% to 20% over the past year.

About the Company

FoundedEmployeesCEOWebsite
202175E. Sutherlandupstreambio.com

Upstream Bio, Inc., a clinical-stage biotechnology company, develops treatments for inflammatory diseases focusing on severe respiratory disorders. It offers verekitug, which is in Phase 2 trials for the treatment of severe asthma and chronic rhinosinusitis with nasal polyps and chronic obstructive pulmonary disease and in Phase I clinical trial for treating chronic obstructive pulmonary disease. The company was incorporated in 2021 and is headquartered in Waltham, Massachusetts.

Upstream Bio, Inc. Fundamentals Summary

How do Upstream Bio's earnings and revenue compare to its market cap?
UPB fundamental statistics
Market capUS$516.99m
Earnings (TTM)-US$143.44m
Revenue (TTM)US$2.85m
185.3x
P/S Ratio
-3.7x
P/E Ratio

Earnings & Revenue

Key profitability statistics from the latest earnings report (TTM)
UPB income statement (TTM)
RevenueUS$2.85m
Cost of RevenueUS$0
Gross ProfitUS$2.85m
Other ExpensesUS$146.30m
Earnings-US$143.44m

Last Reported Earnings

Dec 31, 2025

Next Earnings Date

n/a

Earnings per share (EPS)-2.64
Gross Margin100.00%
Net Profit Margin-5,026.03%
Debt/Equity Ratio0%

How did UPB perform over the long term?

See historical performance and comparison

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/04/06 02:23
End of Day Share Price 2026/04/06 00:00
Earnings2025/12/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Upstream Bio, Inc. is covered by 7 analysts. 7 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Cory KasimovEvercore ISI
Tessa RomeroJ.P. Morgan
Joseph CatanzaroMizuho Securities USA LLC