Stocks · Healthcare · Biotechnology
Gossamer Bio, Inc. GOSS
$10.71 -2.01% Close, Oct 2, 2026 · NASDAQ · Market cap $65.4M
Strong growthWeak trendExpensive vs sectorHigh risk
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
- Operating margin widened to -311.7% from -361.9% a year earlier.
- The diluted share count rose 44.7% in a year.
- The stock is 96% below its highest close of the past year.
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)Top 23%
- Revenue growth accelerationTop 4%
Returns on capital, margins, earnings quality and balance-sheet strength.
- Return on invested capitalTop 1%
- Gross marginTop 6%
- Operating marginBottom 20%
- Accruals (lower is better)Bottom 2%
- Interest coverBottom 30%
How cheap the shares are relative to earnings, cash flow and their own history.
- Earnings yieldBottom 1%
- Free-cash-flow yieldBottom 1%
- EBITDA / enterprise valueBottom 1%
- Sales / enterprise valueTop 13%
Strength and persistence of the price trend, including versus the S&P 500.
- 12-month return excluding last monthBottom 1%
- 6-month returnBottom 2%
- 1-year return vs S&P 500Bottom 1%
- Distance from 52-week highBottom 1%
- Trend checklist (0–4)Bottom 14%
Earnings surprises and analyst sentiment (estimate-revision history is being collected).
- Average EPS surprise, last 4 quartersTop 12%
- Consecutive EPS beatsTop 25%
- Share of analysts rating BuyBottom 24%
- Upside to consensus price targetBottom 1%
Low volatility, shallow drawdowns, low market sensitivity and modest leverage.
- Volatility, 60 days (lower is better)Bottom 3%
- Maximum drawdown, 3 yearsBottom 3%
- Beta vs S&P 500 (lower is better)Bottom 30%
What changed
Latest four quarters versus the same period a year earlier (growth: versus one quarter earlier).
| Measure | Before | Now | |
|---|---|---|---|
| Revenue growth (YoY) | -55.4% | 32.4% | ↑ |
| Gross margin | 100.0% | 99.6% | ↓ |
| Operating margin | -361.9% | -311.7% | ↑ |
| FCF margin | -383.7% | -305.2% | ↑ |
Fundamental momentum
| Measure | Now (TTM) | Year / quarter before | Sector rank | |
|---|---|---|---|---|
| Revenue growth (TTM, YoY) | 32.4% | -55.4% | ↑ | Top 23% |
| Gross margin | 99.6% | 100.0% | ↓ | Top 6% |
| Operating margin | -311.7% | -361.9% | ↑ | Bottom 20% |
| Net margin | -235.0% | -344.8% | ↑ | — |
| Free-cash-flow margin | -305.2% | -383.7% | ↑ | — |
| Return on invested capital | 670.0% | — | Top 1% |
Quality of earnings and balance sheet
- Accruals (net income − OCF) / assetsLower is better; high accruals can signal weaker earnings quality.
- 48.7%
- Stock-based compensation / revenueA cost to shareholders through dilution.
- 26.9%
- Receivables growth vs revenue growthReceivables growing much faster than sales can be a warning.
- -56.0 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.
- -15.2×
Shareholder returns
- Dividend yield (dividends paid, TTM)
- 0.00%
- Net buyback yield (TTM)
- -9.69%
- Shareholder yield
- -9.69%
- Share count change, 1 year
- +44.7%
- Share count change, 3-year CAGR
- +51.0%
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 13, 2026).
Earnings and expectations
Earnings momentum
- Consecutive EPS beats
- 3
- Beats in the last 8 reports
- 7 of 8
- Average EPS surprise, last 4
- +55.5%
- Average 2-day reaction, last 8
- -5.5%
- Positive 20 days after report
- 3 of 8
Analysts
- Consensus price target
- $3.47
- Target vs current price
- -67.6%
- Analysts with a rating
- 17
- Share rating Buy or Strong Buy
- 59%
- Consensus rating
- Buy
How the stock reacted to recent reports
| Report date | EPS surprise | 2 days | 5 days | 20 days | 60 days |
|---|---|---|---|---|---|
| Aug 13, 2026 | +35.2% | -4.2% | -11.8% | -19.8% | — |
| May 18, 2026 | +98.5% | -43.3% | -38.2% | -50.9% | -47.8% |
| Mar 18, 2026 | +98.7% | -8.0% | -26.9% | -4.4% | -62.4% |
| Nov 6, 2025 | -10.5% | -2.5% | +13.9% | +40.1% | +12.7% |
| Aug 11, 2025 | +98.8% | -1.1% | +11.4% | +51.1% | +35.8% |
| May 15, 2025 | +15.8% | +4.0% | +13.9% | +25.7% | +72.3% |
| Mar 14, 2025 | +98.9% | +11.5% | +3.8% | -40.2% | +2.3% |
| Nov 7, 2024 | +6.7% | -0.0% | -8.1% | -19.4% | +29.6% |
Returns from the close before each report. Past reactions do not determine future ones.
Earnings history
| Report date | EPS | Estimate | Surprise | Revenue |
|---|---|---|---|---|
| Aug 13, 2026 | -$6.40 | -$9.87 | +35.2% | $9.2M |
| May 18, 2026 | -$0.20 | -$13.60 | +98.5% | $17.0M |
| Mar 18, 2026 | -$0.21 | -$16.00 | +98.7% | $13.8M |
| Nov 6, 2025 | -$16.80 | -$15.20 | -10.5% | $13.3M |
| Aug 11, 2025 | -$0.17 | -$14.40 | +98.8% | $11.5M |
| May 15, 2025 | -$12.80 | -$15.20 | +15.8% | $9.9M |
| Mar 14, 2025 | -$0.15 | -$13.60 | +98.9% | $9.4M |
| Nov 7, 2024 | -$11.20 | -$12.00 | +6.7% | $9.5M |
Valuation in context
| Multiple | Now | 5-year median | 5-year percentile | Sector rank (cheapness) |
|---|---|---|---|---|
| EV / Sales | 1.19× | — | — | Top 13% |
| Free-cash-flow yield | -248.50% | — | — | Bottom 1% |
| Earnings yield | -519.70% | — | — | Bottom 1% |
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)
- -4.4%
- 200-day average slope (20 days)
- -28.2%
- Distance from 50-day average
- -16.9%
- Distance from 200-day average
- -83.4%
- RSI (14)
- 41.7
- Relative volume
- 0.79×
Risk and drawdowns
- Volatility, 60 days (annualized)
- 138.3%
- Volatility vs own 5-year history
- 84th percentile · High for this stock
- Beta vs S&P 500 (2 years, weekly)
- 1.56
- Correlation with S&P 500
- 0.22
- Current drawdown from 1-year high
- -96.5%
- Maximum drawdown, 3 years
- -96.6%
Largest declines in the past six years
| From peak | To low | Decline | Length | Recovery |
|---|---|---|---|---|
| Aug 24, 2022 | Sep 15, 2026 | -99.1% | 1017 days | Not yet recovered |
| Oct 15, 2021 | Jun 14, 2022 | -57.6% | 166 days | 42 days (Aug 15, 2022) |
| Oct 12, 2020 | Jul 19, 2021 | -46.7% | 192 days | 63 days (Oct 15, 2021) |
| Sep 29, 2020 | Oct 2, 2020 | -11.5% | 3 days | 3 days (Oct 7, 2020) |
Declines of 10% or more from a closing high, measured on daily closes.
Financial statements
- Market cap
- $65.4M
- EPS, diluted (TTM)
- -$55.66
- Revenue (TTM)
- $53.3M
- 52-week range
- $9.10 – $309.60
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Revenue | $0 | $0 | $0 | $114.7M | $48.5M |
| Gross profit | $0 | $0 | $0 | $114.7M | $47.5M |
| Operating income | -$216.1M | -$218.6M | -$183.8M | -$59.9M | -$163.3M |
| Net income | -$234.0M | -$229.4M | -$179.8M | -$56.5M | -$170.4M |
| EPS (diluted) | -$250.13 | -$216.97 | -$94.26 | -$19.99 | -$59.64 |
| Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 | |
|---|---|---|---|---|---|---|---|---|
| Revenue | $9.5M | $9.4M | $9.9M | $11.5M | $13.3M | $13.8M | $17.0M | $9.2M |
| Net income | -$30.8M | -$33.0M | -$36.6M | -$38.3M | -$48.2M | -$47.2M | -$46.7M | $16.9M |
| EPS (diluted) | -$10.89 | -$11.66 | -$12.92 | -$13.60 | -$16.92 | -$16.68 | -$15.94 | -$6.12 |
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Operating cash flow | -$188.9M | -$187.0M | -$159.2M | -$3.5M | -$171.3M |
| Capital expenditure | -$1.6M | -$475,000 | $0 | $0 | -$79,000 |
| Free cash flow | -$190.5M | -$187.5M | -$159.2M | -$3.5M | -$171.3M |
| Dividends paid | $0 | $0 | $0 | $0 | $0 |
| Net share buybacks | $0 | $119.9M | $201.3M | $1.1M | $6.4M |
Cash outflows are shown as negative numbers.
- Cash and short-term investments
- $57.0M
- Total assets
- $76.9M
- Total liabilities
- $170.9M
- Total debt
- $39.1M
- Net debt
- -$2.0M
- Shareholders’ equity
- -$94.0M
As of Jun 30, 2026 (filed Aug 13, 2026).
Short interest
- Shares sold short
- 948,623
- Days to cover
- 5.07
- Change vs previous report
- -98.8%
FINRA short interest, settlement date Sep 15, 2026.
Stock splits
- Sep 11, 2026
- 1-for-80