Comprehensive Stock Comparison
Compare FibroGen, Inc. (FGEN) vs Abivax S.A. (ABVX) Stock
Analyze side-by-side fundamentals, valuation, growth, and profitability to decide which stock is the better buy.
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Quick Verdict
| Category | Winner | Why |
|---|---|---|
| Growth | ABVX | 133.5% revenue growth vs FGEN's -36.7% |
| Quality / Margins | FGEN | -160.6% net margin vs ABVX's -21.9% |
| Stability / Safety | ABVX | Beta 1.07 vs FGEN's 1.21 |
| Dividends | FGEN | 0.3% yield; 1-year raise streak; ABVX pays no meaningful dividend |
| Momentum (1Y) | ABVX | +14.8% vs FGEN's -26.5% |
| Efficiency (ROA) | FGEN | 157.4% ROA vs ABVX's -277.5% |
Who Each Stock Is For
Income & stability
Growth exposure
Long-term compounding (10Y)
Sleep-well-at-night portfolio
Defensive / Recession hedge
Business Model
What each company does and how it makes money
FibroGen is a biopharmaceutical company focused on developing novel therapeutics for serious medical conditions like anemia and fibrotic diseases. It generates revenue primarily through collaboration agreements with major pharmaceutical partners — including Astellas and AstraZeneca — which provide upfront payments, milestone payments, and royalties on future sales. The company's competitive advantage lies in its expertise in hypoxia-inducible factor biology and connective tissue growth factor inhibition, which has produced two late-stage drug candidates with novel mechanisms of action.
Abivax is a clinical-stage biotechnology company developing novel therapies for inflammatory diseases, infectious diseases, and cancer. It generates revenue primarily through research grants and partnerships while advancing its lead candidate ABX464 through clinical trials for ulcerative colitis, Crohn's disease, and other inflammatory conditions. The company's competitive advantage lies in its proprietary small molecule platform technology that targets RNA biology to modulate inflammation and viral replication.
Revenue Breakdown by Segment
How each company's revenue is distributed across its business units
Segment breakdown not available.
Financial Metrics Comparison
Side-by-side fundamentals across 2 stocks. BestLagging
Financial Scorecard
FGEN leads in 2 of 6 categories (Financial Metrics, Profitability & Efficiency). ABVX leads in 2 (Total Returns, Risk & Volatility). 1 tied.
Financial Metrics (TTM)
ABVX and FGEN operate at a comparable scale, with $15M and -$118M in trailing revenue. Profitability is closely matched — net margins range from -160.6% (FGEN) to -21.9% (ABVX). On growth, ABVX holds the edge at -40.6% YoY revenue growth, suggesting stronger near-term business momentum.
| Metric | FGENFibroGen, Inc. | ABVXAbivax S.A. |
|---|---|---|
| RevenueTrailing 12 months | -$118M | $15M |
| EBITDAEarnings before interest/tax | -$123M | -$358M |
| Net IncomeAfter-tax profit | $216M | -$332M |
| Free Cash FlowCash after capex | -$17M | -$250M |
| Gross MarginGross profit ÷ Revenue | +47.5% | +100.0% |
| Operating MarginEBIT ÷ Revenue | -5.1% | -23.7% |
| Net MarginNet income ÷ Revenue | -160.6% | -21.9% |
| FCF MarginFCF ÷ Revenue | -4.7% | -16.5% |
| Rev. Growth (YoY)Latest quarter vs prior year | -97.7% | -40.6% |
| EPS Growth (YoY)Latest quarter vs prior year | +12.7% | -144.6% |
Valuation Metrics
| Metric | FGENFibroGen, Inc. | ABVXAbivax S.A. |
|---|---|---|
| Market CapShares × price | $585M | $9.6B |
| Enterprise ValueMkt cap + debt − cash | $625M | $9.5B |
| Trailing P/EPrice ÷ TTM EPS | -15.63x | -36.72x |
| Forward P/EPrice ÷ next-FY EPS est. | — | — |
| PEG RatioP/E ÷ EPS growth rate | — | — |
| EV / EBITDAEnterprise value multiple | — | — |
| Price / SalesMarket cap ÷ Revenue | 19.75x | 753.36x |
| Price / BookPrice ÷ Book value/share | — | 159.73x |
| Price / FCFMarket cap ÷ FCF | — | — |
Profitability & Efficiency
FGEN delivers a 12.3% return on equity — every $100 of shareholder capital generates $12 in annual profit, vs $-149 for ABVX. On the Piotroski fundamental quality scale (0–9), ABVX scores 4/9 vs FGEN's 2/9, reflecting mixed financial health.
| Metric | FGENFibroGen, Inc. | ABVXAbivax S.A. |
|---|---|---|
| ROE (TTM)Return on equity | +12.3% | -149.0% |
| ROA (TTM)Return on assets | +157.4% | -2.8% |
| ROICReturn on invested capital | — | — |
| ROCEReturn on capital employed | -104.8% | -98.5% |
| Piotroski ScoreFundamental quality 0–9 | 2 | 4 |
| Debt / EquityFinancial leverage | — | 2.40x |
| Net DebtTotal debt minus cash | $40M | -$47M |
| Cash & Equiv.Liquid assets | $50M | $144M |
| Total DebtShort + long-term debt | $90M | $97M |
| Interest CoverageEBIT ÷ Interest expense | -20.28x | -21.56x |
Total Returns (with DRIP)
A $10,000 investment in ABVX five years ago would be worth $146,121 today (with dividends reinvested), compared to $59 for FGEN. Over the past 12 months, ABVX leads with a +1479.2% total return vs FGEN's -26.5%. The 3-year compound annual growth rate (CAGR) favors ABVX at 144.5% vs FGEN's -76.2% — a key indicator of consistent wealth creation.
| Metric | FGENFibroGen, Inc. | ABVXAbivax S.A. |
|---|---|---|
| YTD ReturnYear-to-date | -18.1% | -9.3% |
| 1-Year ReturnPast 12 months | -26.5% | +1479.2% |
| 3-Year ReturnCumulative with dividends | -98.6% | +1361.2% |
| 5-Year ReturnCumulative with dividends | -99.4% | +1361.2% |
| 10-Year ReturnCumulative with dividends | -98.3% | +1361.2% |
| CAGR (3Y)Annualised 3-year return | -76.2% | +144.5% |
Risk & Volatility
ABVX is the less volatile stock with a 1.07 beta — it tends to amplify market swings less than FGEN's 1.21 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. ABVX currently trades 81.5% from its 52-week high vs FGEN's 59.5% drawdown — a narrower gap to the peak suggests stronger recent price momentum.
| Metric | FGENFibroGen, Inc. | ABVXAbivax S.A. |
|---|---|---|
| Beta (5Y)Sensitivity to S&P 500 | 1.21x | 1.07x |
| 52-Week HighHighest price in past year | $12.60 | $148.83 |
| 52-Week LowLowest price in past year | $4.85 | $4.77 |
| % of 52W HighCurrent price vs 52-week peak | +59.5% | +81.5% |
| RSI (14)Momentum oscillator 0–100 | 39.4 | 45.5 |
| Avg Volume (50D)Average daily shares traded | 27K | 1.2M |
Analyst Outlook
Wall Street rates FGEN as "Hold" and ABVX as "Buy". Consensus price targets imply 273.3% upside for FGEN (target: $28) vs 17.5% for ABVX (target: $143). FGEN is the only dividend payer here at 0.30% yield — a key consideration for income-focused portfolios.
| Metric | FGENFibroGen, Inc. | ABVXAbivax S.A. |
|---|---|---|
| Analyst RatingConsensus buy/hold/sell | Hold | Buy |
| Price TargetConsensus 12-month target | $28.00 | $142.50 |
| # AnalystsCovering analysts | 14 | 8 |
| Dividend YieldAnnual dividend ÷ price | +0.3% | — |
| Dividend StreakConsecutive years of raises | 1 | — |
| Dividend / ShareAnnual DPS | $0.02 | — |
| Buyback YieldShare repurchases ÷ mkt cap | 0.0% | 0.0% |
Historical Charts
Charts are rendered on first load. Hover for details.
Chart 1Total Return — 5 Years (Rebased to 100)
| Stock | Nov 23 | Feb 26 | Change |
|---|---|---|---|
| FibroGen, Inc. (FGEN) | 100 | 59.65 | -40.4% |
| Abivax S.A. (ABVX) | 117.59 | 1,342.89 | +1042.0% |
Abivax S.A. (ABVX) returned +1.4K% over 5 years vs FibroGen, Inc. (FGEN)'s -99%. A $10,000 investment in ABVX 5 years ago would be worth $146,121 today (including dividends reinvested).
Chart 2Revenue Growth — 10 Years
| Stock | 2015 | 2024 | Change |
|---|---|---|---|
| FibroGen, Inc. (FGEN) | $181M | $30M | -83.6% |
| Abivax S.A. (ABVX) | $42000.00 | $11M | +25595.2% |
FibroGen, Inc.'s revenue grew from $181M (2015) to $30M (2024) — a -18.2% CAGR. Abivax S.A.'s revenue grew from $0M (2015) to $11M (2024) — a 85.3% CAGR.
Chart 3Net Margin Trend — 10 Years
| Stock | 2015 | 2024 | Change |
|---|---|---|---|
| FibroGen, Inc. (FGEN) | -47.4% | -160.6% | -238.6% |
| Abivax S.A. (ABVX) | -379.9% | -16.3% | +95.7% |
FibroGen, Inc.'s net margin went from -47% (2015) to -161% (2024). Abivax S.A.'s net margin went from -380% (2015) to -16% (2024).
Chart 4EPS Growth — 10 Years
| Stock | 2015 | 2024 | Change |
|---|---|---|---|
| FibroGen, Inc. (FGEN) | -1.42 | -0.48 | +66.2% |
| Abivax S.A. (ABVX) | -1.64 | -2.8 | -70.7% |
FibroGen, Inc.'s EPS grew from $-1.42 (2015) to $-0.48 (2024). Abivax S.A.'s EPS grew from $-1.64 (2015) to $-2.80 (2024).
Chart 5Free Cash Flow — 5 Years
FibroGen, Inc. generated $-138M FCF in 2024 (-23% vs 2021). Abivax S.A. generated $-155M FCF in 2024 (-227% vs 2021).
FGEN vs ABVX: Frequently Asked Questions
7 questions · data-driven answers · updated daily
01Is FGEN or ABVX a better buy right now?
Analysts rate Abivax S.A. (ABVX) a "Buy" — based on 8 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.
02Which is the better long-term investment — FGEN or ABVX?
Over the past 5 years, Abivax S.A. (ABVX) delivered a total return of +1361%, compared to -99.4% for FibroGen, Inc. (FGEN). A $10,000 investment in ABVX five years ago would be worth approximately $146K today (assuming dividends reinvested). Over 10 years, the gap is even starker: ABVX returned +1361% versus FGEN's -98.3%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.
03Which is safer — FGEN or ABVX?
By beta (market sensitivity over 5 years), Abivax S.A. (ABVX) is the lower-risk stock at 1.07β versus FibroGen, Inc.'s 1.21β — meaning FGEN is approximately 13% more volatile than ABVX relative to the S&P 500.
04Which has better profit margins — FGEN or ABVX?
FibroGen, Inc. (FGEN) is the more profitable company, earning -160.6% net margin versus -1633.1% for Abivax S.A. — meaning it keeps -160.6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: FGEN leads at -507.8% versus -1602.9% for ABVX. At the gross margin level — before operating expenses — ABVX leads at 100.0%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.
05Which pays a better dividend — FGEN or ABVX?
In this comparison, FGEN (0.3% yield) pays a dividend. ABVX does not pay a meaningful dividend and should not be held primarily for income.
06Is FGEN or ABVX better for a retirement portfolio?
For long-horizon retirement investors, Abivax S.A. (ABVX) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1.07), +1361% 10Y return). Both have compounded well over 10 years (ABVX: +1361%, FGEN: -98.3%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.
07What are the main differences between FGEN and ABVX?
Both stocks operate in the Healthcare sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.
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