Stocks · Healthcare · Biotechnology

Upstream Bio, Inc. UPB

$5.04 +0.00% Close, Oct 2, 2026 · NASDAQ · Market cap $274.3M

Weak trendExpensive vs sector

Next earnings report: Nov 4, 2026

Scroll or pinch to zoom, drag to move. Daily prices adjusted for splits. Markers: E = earnings (green beat, red miss), S = split, D = dividend.

Three things to know

  1. Operating margin narrowed to -5382.6% from -4464.6% a year earlier.
  2. The stock is 85% below its highest close of the past year.
  3. Over the past year the stock returned -72.9%, behind the S&P 500 by 88.0 percentage points.

PromtFinance scores

Each score is a percentile within the Healthcare sector (0–100). Under each score: how the stock ranks in its sector on every component. As of Oct 5, 2026.

Growth50Neutral

How fast revenue, earnings and cash flow are growing.

  • Revenue growth (TTM, YoY)Top 38%
  • Revenue growth, 3-year CAGRTop 19%
  • Revenue growth accelerationBottom 10%
Quality38Weak

Returns on capital, margins, earnings quality and balance-sheet strength.

  • Return on invested capitalBottom 19%
  • Gross marginTop 8%
  • Operating marginBottom 6%
  • Accruals (lower is better)Top 47%
Value6Very weak

How cheap the shares are relative to earnings, cash flow and their own history.

  • Earnings yieldBottom 13%
  • Free-cash-flow yieldBottom 9%
  • EBITDA / enterprise valueBottom 6%
  • Sales / enterprise valueBottom 12%
Momentum1Very weak

Strength and persistence of the price trend, including versus the S&P 500.

  • 12-month return excluding last monthBottom 3%
  • 6-month returnBottom 6%
  • 1-year return vs S&P 500Bottom 2%
  • Distance from 52-week highBottom 1%
  • Trend checklist (0–4)Bottom 14%
Revisions64Neutral

Earnings surprises and analyst sentiment (estimate-revision history is being collected).

  • Average EPS surprise, last 4 quartersTop 48%
  • Consecutive EPS beatsBottom 49%
  • Share of analysts rating BuyBottom 25%
  • Upside to consensus price targetTop 6%
Stability36Weak

Low volatility, shallow drawdowns, low market sensitivity and modest leverage.

  • Volatility, 60 days (lower is better)Top 49%
  • Maximum drawdown, 3 yearsBottom 25%
  • Beta vs S&P 500 (lower is better)Bottom 43%

What changed

Latest four quarters versus the same period a year earlier (growth: versus one quarter earlier).

MeasureBeforeNow
Revenue growth (YoY)44.7%16.0%↓
Gross margin100.0%98.4%↓
Operating margin-4464.6%-5382.6%↓
FCF margin-4206.2%-4317.4%↓

Fundamental momentum

MeasureNow (TTM)Year / quarter beforeSector rank
Revenue growth (TTM, YoY)16.0%44.7%↓Top 38%
Gross margin98.4%100.0%↓Top 8%
Operating margin-5382.6%-4464.6%↓Bottom 6%
Net margin-4955.7%-3836.6%↓—
Free-cash-flow margin-4317.4%-4206.2%↓—
Return on invested capital-62.5%—Bottom 19%
Revenue growth, 3-year CAGR33.0%—Top 19%

Quality of earnings and balance sheet

Accruals (net income − OCF) / assetsLower is better; high accruals can signal weaker earnings quality.
-7.2%
Stock-based compensation / revenueA cost to shareholders through dilution.
446.5%
Receivables growth vs revenue growthReceivables growing much faster than sales can be a warning.
-34.7 pp
Net debt / EBITDABelow 1× is conservative; above 3× is high leverage.
Net cash

Shareholder returns

Dividend yield (dividends paid, TTM)
0.00%
Net buyback yield (TTM)
-1.82%
Shareholder yield
-1.82%
Share count change, 1 year
+1.5%

Shareholder yield = dividends + net buybacks over the last four quarters, divided by market cap.

Based on the four quarters through Jun 30, 2026 (filed Aug 11, 2026).

Earnings and expectations

Earnings momentum

Consecutive EPS beats
1
Beats in the last 8 reports
3 of 8
Average EPS surprise, last 4
+4.4%
Average 2-day reaction, last 8
+1.4%
Positive 20 days after report
4 of 8

Analysts

Consensus price target
$25.00
Target vs current price
+396.0%
Analysts with a rating
5
Share rating Buy or Strong Buy
60%
Consensus rating
Buy

How the stock reacted to recent reports

Report dateEPS surprise2 days5 days20 days60 days
Aug 11, 2026+6.4%-4.7%-4.0%-16.8%—
May 13, 2026+0.0%+4.6%-10.3%-29.8%-19.0%
Mar 26, 2026-8.2%+3.4%-1.7%+1.4%-33.5%
Nov 5, 2025+19.2%-4.3%-5.0%+7.7%+19.6%
Aug 6, 2025-21.3%+7.9%+12.9%+29.0%+56.1%
May 6, 2025-4.1%-5.4%+9.4%+24.9%+76.4%
Mar 12, 2025+26.8%+7.8%+5.6%-29.1%+26.5%
Nov 7, 2024-1200.3%+1.7%-2.5%-17.2%-66.1%

Returns from the close before each report. Past reactions do not determine future ones.

Earnings history

Report dateEPSEstimateSurpriseRevenue
Aug 11, 2026-$0.73-$0.78+6.4%$773,000
May 13, 2026-$0.75-$0.75+0.0%$1.0M
Mar 26, 2026-$0.79-$0.73-8.2%$668,000
Nov 5, 2025-$0.63-$0.78+19.2%$683,000
Aug 6, 2025-$0.74-$0.61-21.3%$937,000
May 6, 2025-$0.51-$0.49-4.1%$566,000
Mar 12, 2025-$0.41-$0.56+26.8%$613,000
Nov 7, 2024-$6.96-$0.54-1200.3%$607,000

Valuation in context

MultipleNow5-year median5-year percentileSector rank (cheapness)
EV / Sales62.01×——Bottom 12%
Free-cash-flow yield-49.71%——Bottom 9%
Earnings yield-57.54%——Bottom 13%

Technical state

Trend checklist

  • ✗ Price above 20-day average
  • ✗ Price above 50-day average
  • ✗ Price above 200-day average
  • ✗ 50-day average above 200-day
  • ✓ MACD histogram positive

Trend quality

Days above the 50-day average
0
Days above the 200-day average
0
50-day average slope (20 days)
-9.8%
200-day average slope (20 days)
-15.5%
Distance from 50-day average
-19.4%
Distance from 200-day average
-57.4%
RSI (14)
32.4
Relative volume
1.47×

Risk and drawdowns

Volatility, 60 days (annualized)
54.9%
Volatility vs own 5-year history
0th percentile · Low for this stock
Beta vs S&P 500 (2 years, weekly)
1.23
Correlation with S&P 500
0.20
Current drawdown from 1-year high
-84.5%
Maximum drawdown, 3 years
-84.5%

Largest declines in the past six years

From peakTo lowDeclineLengthRecovery
Jan 13, 2026Oct 1, 2026-84.5%180 daysNot yet recovered
Nov 5, 2024Apr 8, 2025-77.8%104 days160 days (Nov 25, 2025)
Dec 22, 2025Jan 6, 2026-15.0%9 days4 days (Jan 12, 2026)
Dec 1, 2025Dec 2, 2025-13.7%1 days10 days (Dec 16, 2025)

Declines of 10% or more from a closing high, measured on daily closes.

Financial statements

Market cap
$274.3M
EPS, diluted (TTM)
-$2.90
Revenue (TTM)
$3.2M
52-week range
$4.86 – $33.68
FY 2022FY 2023FY 2024FY 2025
Revenue$1.2M$2.4M$2.4M$2.9M
Gross profit$1.2M$2.4M$2.4M$2.9M
Operating income-$23.9M-$40.1M-$77.8M-$160.4M
Net income-$23.9M-$20.5M-$62.8M-$143.4M
EPS (diluted)-$0.66-$1.05-$1.49-$2.66
Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
Revenue$607,000$613,000$566,000$937,000$683,000$668,000$1.0M$773,000
Net income-$16.0M-$21.2M-$27.3M-$40.0M-$33.7M-$42.5M-$40.6M-$39.7M
EPS (diluted)-$0.41-$0.41-$0.51-$0.74-$0.63-$0.79-$0.75-$0.73
FY 2022FY 2023FY 2024FY 2025
Operating cash flow-$19.0M-$37.9M-$59.2M-$133.3M
Capital expenditure-$82,000-$144,000-$511,000-$165,000
Free cash flow-$19.1M-$38.1M-$59.7M-$133.3M
Dividends paid$0$0$0$0
Net share buybacks$0$118,000$272.7M$2.4M

Cash outflows are shown as negative numbers.

Cash and short-term investments
$261.3M
Total assets
$281.2M
Total liabilities
$10.2M
Total debt
$954,000
Net debt
-$78.4M
Shareholders’ equity
$271.0M

As of Jun 30, 2026 (filed Aug 11, 2026).

Short interest

Shares sold short
4,490,724
Days to cover
6.84
Change vs previous report
+9.7%

FINRA short interest, settlement date Sep 15, 2026.