Stocks · Healthcare · Biotechnology
Sutro Biopharma, Inc. STRO
$15.35 -3.88% Close, Oct 2, 2026 · NASDAQ · Market cap $148.5M
Expensive vs sectorHigh risk
Next earnings report: Nov 5, 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
- Operating margin narrowed to -309.9% from -196.3% a year earlier.
- The diluted share count rose 95.9% in a year.
- Revenue over the last four quarters was $45.7M, down 56.3% from a year earlier, slowing from 49.9% a quarter earlier.
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.
How fast revenue, earnings and cash flow are growing.
- Revenue growth (TTM, YoY)Bottom 10%
- Revenue growth, 3-year CAGRTop 41%
- Revenue growth accelerationBottom 4%
Returns on capital, margins, earnings quality and balance-sheet strength.
- Return on invested capitalBottom 11%
- Gross marginTop 10%
- Operating marginBottom 21%
- Accruals (lower is better)Top 16%
- Interest coverBottom 44%
How cheap the shares are relative to earnings, cash flow and their own history.
- Earnings yieldBottom 4%
- Free-cash-flow yieldBottom 3%
- EBITDA / enterprise valueBottom 4%
- Sales / enterprise valueTop 29%
Strength and persistence of the price trend, including versus the S&P 500.
- 12-month return excluding last monthTop 13%
- 6-month returnBottom 13%
- 1-year return vs S&P 500Top 21%
- Distance from 52-week highBottom 12%
- Trend checklist (0–4)Bottom 14%
Earnings surprises and analyst sentiment (estimate-revision history is being collected).
- Average EPS surprise, last 4 quartersBottom 22%
- Consecutive EPS beatsBottom 20%
- Share of analysts rating BuyTop 27%
- Upside to consensus price targetTop 16%
Low volatility, shallow drawdowns, low market sensitivity and modest leverage.
- Volatility, 60 days (lower is better)Bottom 39%
- Maximum drawdown, 3 yearsBottom 14%
- Beta vs S&P 500 (lower is better)Bottom 1%
What changed
Latest four quarters versus the same period a year earlier (growth: versus one quarter earlier).
| Measure | Before | Now | |
|---|---|---|---|
| Revenue growth (YoY) | 49.9% | -56.3% | ↓ |
| Gross margin | 100.0% | 97.2% | ↓ |
| Operating margin | -196.3% | -309.9% | ↓ |
| FCF margin | -241.2% | -318.6% | ↓ |
Fundamental momentum
| Measure | Now (TTM) | Year / quarter before | Sector rank | |
|---|---|---|---|---|
| Revenue growth (TTM, YoY) | -56.3% | 49.9% | ↓ | Bottom 10% |
| Gross margin | 97.2% | 100.0% | ↓ | Top 10% |
| Operating margin | -309.9% | -196.3% | ↓ | Bottom 21% |
| Net margin | -395.2% | -199.8% | ↓ | — |
| Free-cash-flow margin | -318.6% | -241.2% | ↓ | — |
| Return on invested capital | -95.5% | — | Bottom 11% | |
| Revenue growth, 3-year CAGR | 14.8% | — | Top 41% |
Quality of earnings and balance sheet
- Accruals (net income − OCF) / assetsLower is better; high accruals can signal weaker earnings quality.
- -18.2%
- Stock-based compensation / revenueA cost to shareholders through dilution.
- 14.8%
- Receivables growth vs revenue growthReceivables growing much faster than sales can be a warning.
- +28.7 pp
- Net debt / EBITDABelow 1× is conservative; above 3× is high leverage.
- Net cash
- Interest cover (operating income / interest)How many times operating profit covers interest.
- -3.5×
Shareholder returns
- Dividend yield (dividends paid, TTM)
- 0.00%
- Net buyback yield (TTM)
- -69.41%
- Shareholder yield
- -69.41%
- Share count change, 1 year
- +95.9%
- Share count change, 3-year CAGR
- +40.0%
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 12, 2026).
Earnings and expectations
Earnings momentum
- Consecutive EPS beats
- 0
- Beats in the last 8 reports
- 2 of 8
- Average EPS surprise, last 4
- -16.9%
- Average 2-day reaction, last 8
- -4.3%
- Positive 20 days after report
- 2 of 8
Analysts
- Consensus price target
- $51.00
- Target vs current price
- +232.2%
- Analysts with a rating
- 20
- Share rating Buy or Strong Buy
- 90%
- Consensus rating
- Buy
How the stock reacted to recent reports
| Report date | EPS surprise | 2 days | 5 days | 20 days | 60 days |
|---|---|---|---|---|---|
| Aug 12, 2026 | -6.4% | -14.9% | -12.0% | -26.7% | — |
| May 14, 2026 | -26.7% | -3.0% | -21.4% | -33.1% | -35.5% |
| Mar 23, 2026 | +35.2% | +3.1% | +18.1% | +67.2% | +36.2% |
| Nov 6, 2025 | -69.9% | -4.3% | -17.6% | -4.7% | +50.7% |
| Aug 7, 2025 | +63.4% | -2.2% | -5.6% | +24.7% | +41.8% |
| May 8, 2025 | -44.4% | -3.5% | -26.2% | -17.0% | -16.7% |
| Mar 13, 2025 | -7.2% | -6.7% | -38.7% | -53.1% | -36.7% |
| Nov 13, 2024 | -517.8% | -2.9% | -33.8% | -40.0% | -60.0% |
Returns from the close before each report. Past reactions do not determine future ones.
Earnings history
| Report date | EPS | Estimate | Surprise | Revenue |
|---|---|---|---|---|
| Aug 12, 2026 | -$2.33 | -$2.19 | -6.4% | $9.8M |
| May 14, 2026 | -$2.94 | -$2.32 | -26.7% | $14.5M |
| Mar 23, 2026 | -$5.29 | -$8.16 | +35.2% | $11.7M |
| Nov 6, 2025 | -$6.70 | -$3.94 | -69.9% | $9.7M |
| Aug 7, 2025 | -$1.40 | -$3.82 | +63.4% | $63.7M |
| May 8, 2025 | -$9.10 | -$6.30 | -44.4% | $17.4M |
| Mar 13, 2025 | -$8.90 | -$8.30 | -7.2% | $14.8M |
| Nov 13, 2024 | -$5.90 | -$0.96 | -517.8% | $8.5M |
Valuation in context
| Multiple | Now | 5-year median | 5-year percentile | Sector rank (cheapness) |
|---|---|---|---|---|
| EV / Sales | 2.30× | — | — | Top 29% |
| Free-cash-flow yield | -98.03% | — | — | Bottom 3% |
| Earnings yield | -113.49% | — | — | Bottom 4% |
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)
- -18.5%
- 200-day average slope (20 days)
- +3.5%
- Distance from 50-day average
- -23.9%
- Distance from 200-day average
- -33.2%
- RSI (14)
- 28.3
- Relative volume
- 1.12×
Risk and drawdowns
- Volatility, 60 days (annualized)
- 61.6%
- Volatility vs own 5-year history
- 20th percentile · Normal for this stock
- Beta vs S&P 500 (2 years, weekly)
- 3.44
- Correlation with S&P 500
- 0.49
- Current drawdown from 1-year high
- -62.5%
- Maximum drawdown, 3 years
- -90.7%
Largest declines in the past six years
| From peak | To low | Decline | Length | Recovery |
|---|---|---|---|---|
| Jan 22, 2021 | Apr 17, 2025 | -98.1% | 1064 days | Not yet recovered |
| Dec 17, 2020 | Jan 4, 2021 | -13.6% | 10 days | 3 days (Jan 7, 2021) |
| Nov 17, 2020 | Nov 23, 2020 | -12.5% | 4 days | 8 days (Dec 4, 2020) |
Declines of 10% or more from a closing high, measured on daily closes.
Financial statements
- Market cap
- $148.5M
- EPS, diluted (TTM)
- -$17.42
- Revenue (TTM)
- $45.7M
- 52-week range
- $7.15 – $43.85
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Revenue | $61.9M | $67.8M | $153.7M | $62.0M | $102.5M |
| Gross profit | $52.1M | $59.5M | $146.9M | $54.8M | $95.2M |
| Operating income | -$98.5M | -$128.9M | -$89.3M | -$238.5M | -$105.0M |
| Net income | -$105.5M | -$119.2M | -$106.8M | -$227.5M | -$191.1M |
| EPS (diluted) | -$22.90 | -$23.50 | -$17.80 | -$29.60 | -$22.49 |
| Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 | |
|---|---|---|---|---|---|---|---|---|
| Revenue | $8.5M | $14.8M | $17.4M | $63.7M | $9.7M | $11.6M | $14.5M | $9.8M |
| Net income | -$48.8M | -$72.4M | -$76.0M | -$11.5M | -$56.9M | -$46.8M | -$38.5M | -$38.5M |
| EPS (diluted) | -$5.90 | -$8.80 | -$9.10 | -$1.40 | -$6.70 | -$5.45 | -$2.94 | -$2.33 |
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Operating cash flow | -$81.7M | $3.5M | -$111.6M | -$191.5M | -$177.2M |
| Capital expenditure | -$15.3M | -$7.9M | -$4.3M | -$3.1M | -$1.7M |
| Free cash flow | -$97.0M | -$4.3M | -$115.9M | -$194.6M | -$178.9M |
| Dividends paid | $0 | $0 | $0 | $0 | $0 |
| Net share buybacks | -$7,000 | $56.3M | $12.0M | $96.5M | $376,000 |
Cash outflows are shown as negative numbers.
- Cash and short-term investments
- $164.3M
- Total assets
- $194.5M
- Total liabilities
- $297.8M
- Total debt
- $10.8M
- Net debt
- -$43.6M
- Shareholders’ equity
- -$103.3M
As of Jun 30, 2026 (filed Aug 12, 2026).
Short interest
- Shares sold short
- 2,076,152
- Days to cover
- 5.99
- Change vs previous report
- +14.7%
FINRA short interest, settlement date Sep 15, 2026.
Stock splits
- Dec 3, 2025
- 1-for-10