RLYB
Rallybio Corporation
Biotechnology
Market Cap$82M
5Y Perf.-89.3%
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Stock Comparison
RLYB vs KYMR
Revenue, margins, valuation, and 5-year total return — side by side.
KYMR
Kymera Therapeutics, Inc.
Biotechnology
Market Cap$7.04B
5Y Perf.+43.3%
RLYB vs KYMR — Key Financials
Market cap, revenue, margins, and valuation side-by-side.
| Company Snapshot | RLYB | KYMR |
|---|---|---|
| Industry | Biotechnology | Biotechnology |
| Market Cap | $82M | $7.04B |
| Revenue (TTM) | $674K | $51M |
| Net Income (TTM) | $-14M | $-315M |
| Gross Margin | 95.5% | 33.2% |
| Operating Margin | -56.8% | -7.0% |
| Total Debt | $154K | $82M |
| Cash & Equiv. | $14M | $357M |
RLYB vs KYMR — Long-Term Stock Performance
Price return indexed to 100 at period start. Dividends excluded.
RLYB
KYMR
| Stock | Jul 21 | May 26 | Return |
|---|---|---|---|
| Rallybio Corporation (RLYB) | 100 | 10.7 | -89.3% |
| Kymera Therapeutics… (KYMR) | 100 | 143.3 | +43.3% |
Price return only. Dividends and distributions are not included.
Quick Verdict: RLYB vs KYMR
Each card shows where this stock fits in a portfolio — not just who wins on paper.
Bottom line: KYMR leads in 4 of 6 categories, making it the strongest pick for growth and revenue expansion and profitability and margin quality. Rallybio Corporation is the stronger pick specifically for recent price momentum and sentiment. As sector peers, any of these can serve as alternatives in the same allocation.
RLYB
Rallybio Corporation
The Defensive Pick
RLYB is the clearest fit if your priority is sleep-well-at-night.
- Lower volatility, beta 1.32, Low D/E 0.2%, current ratio 10.87x
- +5.1% vs KYMR's +201.9%
Best for: sleep-well-at-night
KYMR
Kymera Therapeutics, Inc.
The Income Pick
KYMR carries the broadest edge in this set and is the clearest fit for income & stability and growth exposure.
- beta 1.15
- Rev growth -16.7%, EPS growth -23.8%, 3Y rev CAGR -5.8%
- 159.4% 10Y total return vs RLYB's -87.1%
Best for: income & stability and growth exposure
See the full category breakdown
| Category | Winner | Why |
|---|---|---|
| Growth | KYMR | -16.7% revenue growth vs RLYB's -18.4% |
| Quality / Margins | KYMR | -6.1% margin vs RLYB's -21.0% |
| Stability / Safety | KYMR | Beta 1.15 vs RLYB's 1.32 |
| Dividends | Tie | Neither stock pays a meaningful dividend |
| Momentum (1Y) | RLYB | +5.1% vs KYMR's +201.9% |
| Efficiency (ROA) | KYMR | -22.3% ROA vs RLYB's -23.2%, ROIC -24.9% vs -69.8% |
RLYB vs KYMR — Revenue Breakdown by Segment
How each company's revenue is distributed across its business units
FY 2024
Segment breakdown not available.
RLYB vs KYMR — Financial Metrics
Side-by-side numbers across 2 stocks — who leads on profitability, valuation, growth, and risk.
BEST OVERALLKYMRLAGGINGRLYB
RLYBRallybio Corporation
1leads
KYMRKymera Therapeutics, …
3leads
6 Total Categories
CATEGORYLEADERvs RLYBMETRICS WON
Income & Cash FlowRevenue, margins, and cash flow strength
KYMR4/6
Valuation MetricsMultiples, price ratios, and targets
RLYB2/3
Profitability & EfficiencyROE, ROIC, leverage, and quality scores
KYMR5/7
Total Returns1Y, 3Y, 5Y total returns with dividends
KYMR4/6
Risk & VolatilityBeta, volatility, and downside exposure
Tied
—
Analyst OutlookRatings, price targets, and dividends
—
—
Income & Cash Flow (Last 12 Months)
KYMR leads this category, winning 4 of 6 comparable metrics.
Income & Cash Flow (Last 12 Months)
KYMR is the larger business by revenue, generating $51M annually — 76.4x RLYB's $674,000. KYMR is the more profitable business, keeping -6.1% of every revenue dollar as net income compared to RLYB's -21.0%. On growth, KYMR holds the edge at +55.5% YoY revenue growth, suggesting stronger near-term business momentum.
| Metric | RLYBRallybio Corporat… | KYMRKymera Therapeuti… |
|---|---|---|
| RevenueTrailing 12 months | $674,000 | $51M |
| EBITDAEarnings before interest/tax | -$38M | -$352M |
| Net IncomeAfter-tax profit | -$14M | -$315M |
| Free Cash FlowCash after capex | -$35M | -$244M |
| Gross MarginGross profit ÷ Revenue | +95.5% | +33.2% |
| Operating MarginEBIT ÷ Revenue | -56.8% | -7.0% |
| Net MarginNet income ÷ Revenue | -21.0% | -6.1% |
| FCF MarginFCF ÷ Revenue | -51.9% | -4.7% |
| Rev. Growth (YoY)Latest quarter vs prior year | -29.1% | +55.5% |
| EPS Growth (YoY)Latest quarter vs prior year | +2.4% | +13.4% |
KYMR leads this category, winning 4 of 6 comparable metrics.
Valuation Metrics
RLYB leads this category, winning 2 of 3 comparable metrics.
Valuation Metrics
| Metric | RLYBRallybio Corporat… | KYMRKymera Therapeuti… |
|---|---|---|
| Market CapShares × price | $82M | $7.0B |
| Enterprise ValueMkt cap + debt − cash | $68M | $6.8B |
| Trailing P/EPrice ÷ TTM EPS | -1.37x | -23.38x |
| Forward P/EPrice ÷ next-FY EPS est. | — | — |
| PEG RatioP/E ÷ EPS growth rate | — | — |
| EV / EBITDAEnterprise value multiple | — | — |
| Price / SalesMarket cap ÷ Revenue | 128.94x | 179.65x |
| Price / BookPrice ÷ Book value/share | 1.29x | 4.61x |
| Price / FCFMarket cap ÷ FCF | — | — |
RLYB leads this category, winning 2 of 3 comparable metrics.
Profitability & Efficiency
KYMR leads this category, winning 5 of 7 comparable metrics.
Profitability & Efficiency
KYMR delivers a -25.0% return on equity — every $100 of shareholder capital generates $-25 in annual profit, vs $-25 for RLYB. RLYB carries lower financial leverage with a 0.00x debt-to-equity ratio, signaling a more conservative balance sheet compared to KYMR's 0.05x.
| Metric | RLYBRallybio Corporat… | KYMRKymera Therapeuti… |
|---|---|---|
| ROE (TTM)Return on equity | -25.2% | -25.0% |
| ROA (TTM)Return on assets | -23.2% | -22.3% |
| ROICReturn on invested capital | -69.8% | -24.9% |
| ROCEReturn on capital employed | -71.9% | -27.2% |
| Piotroski ScoreFundamental quality 0–9 | 4 | 4 |
| Debt / EquityFinancial leverage | 0.00x | 0.05x |
| Net DebtTotal debt minus cash | -$14M | -$275M |
| Cash & Equiv.Liquid assets | $14M | $357M |
| Total DebtShort + long-term debt | $154,000 | $82M |
| Interest CoverageEBIT ÷ Interest expense | — | -2119.53x |
KYMR leads this category, winning 5 of 7 comparable metrics.
Total Returns (Dividends Reinvested)
KYMR leads this category, winning 4 of 6 comparable metrics.
Total Returns (Dividends Reinvested)
A $10,000 investment in KYMR five years ago would be worth $21,049 today (with dividends reinvested), compared to $1,291 for RLYB. Over the past 12 months, RLYB leads with a +511.8% total return vs KYMR's +201.9%. The 3-year compound annual growth rate (CAGR) favors KYMR at 46.0% vs RLYB's -32.8% — a key indicator of consistent wealth creation.
| Metric | RLYBRallybio Corporat… | KYMRKymera Therapeuti… |
|---|---|---|
| YTD ReturnYear-to-date | +157.2% | +18.6% |
| 1-Year ReturnPast 12 months | +511.8% | +201.9% |
| 3-Year ReturnCumulative with dividends | -69.7% | +211.0% |
| 5-Year ReturnCumulative with dividends | -87.1% | +110.5% |
| 10-Year ReturnCumulative with dividends | -87.1% | +159.4% |
| CAGR (3Y)Annualised 3-year return | -32.8% | +46.0% |
KYMR leads this category, winning 4 of 6 comparable metrics.
Risk & Volatility
Evenly matched — RLYB and KYMR each lead in 1 of 2 comparable metrics.
Risk & Volatility
KYMR is the less volatile stock with a 1.15 beta — it tends to amplify market swings less than RLYB's 1.32 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. RLYB currently trades 95.1% from its 52-week high vs KYMR's 83.7% drawdown — a narrower gap to the peak suggests stronger recent price momentum.
| Metric | RLYBRallybio Corporat… | KYMRKymera Therapeuti… |
|---|---|---|
| Beta (5Y)Sensitivity to S&P 500 | 1.32x | 1.15x |
| 52-Week HighHighest price in past year | $15.31 | $103.00 |
| 52-Week LowLowest price in past year | $0.58 | $28.06 |
| % of 52W HighCurrent price vs 52-week peak | +95.1% | +83.7% |
| RSI (14)Momentum oscillator 0–100 | 89.2 | 46.3 |
| Avg Volume (50D)Average daily shares traded | 394K | 613K |
Evenly matched — RLYB and KYMR each lead in 1 of 2 comparable metrics.
Analyst Outlook
Insufficient data to determine a leader in this category.
Analyst Outlook
Wall Street rates RLYB as "Buy" and KYMR as "Buy".
| Metric | RLYBRallybio Corporat… | KYMRKymera Therapeuti… |
|---|---|---|
| Analyst RatingConsensus buy/hold/sell | Buy | Buy |
| Price TargetConsensus 12-month target | — | $117.06 |
| # AnalystsCovering analysts | 8 | 26 |
| Dividend YieldAnnual dividend ÷ price | — | — |
| Dividend StreakConsecutive years of raises | — | — |
| Dividend / ShareAnnual DPS | — | — |
| Buyback YieldShare repurchases ÷ mkt cap | 0.0% | 0.0% |
Insufficient data to determine a leader in this category.
Key Takeaway
KYMR leads in 3 of 6 categories (Income & Cash Flow, Profitability & Efficiency). RLYB leads in 1 (Valuation Metrics). 1 tied.
Best OverallKymera Therapeutics, Inc. (KYMR)Leads 3 of 6 categories
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RLYB vs KYMR: Frequently Asked Questions
8 questions · data-driven answers · updated daily
01Is RLYB or KYMR a better buy right now?
Analysts rate Rallybio Corporation (RLYB) 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 — RLYB or KYMR?
Over the past 5 years, Kymera Therapeutics, Inc.
(KYMR) delivered a total return of +110. 5%, compared to -87. 1% for Rallybio Corporation (RLYB). Over 10 years, the gap is even starker: KYMR returned +159. 4% versus RLYB's -87. 1%. 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 — RLYB or KYMR?
By beta (market sensitivity over 5 years), Kymera Therapeutics, Inc.
(KYMR) is the lower-risk stock at 1. 15β versus Rallybio Corporation's 1. 32β — meaning RLYB is approximately 15% more volatile than KYMR relative to the S&P 500. On balance sheet safety, Rallybio Corporation (RLYB) carries a lower debt/equity ratio of 0% versus 5% for Kymera Therapeutics, Inc. — giving it more financial flexibility in a downturn.
04Which is growing faster — RLYB or KYMR?
On earnings-per-share growth, the picture is similar: Rallybio Corporation grew EPS 27.
7% year-over-year, compared to -23. 8% for Kymera Therapeutics, Inc.. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.
05Which has better profit margins — RLYB or KYMR?
Kymera Therapeutics, Inc.
(KYMR) is the more profitable company, earning -794. 4% net margin versus -90. 8% for Rallybio Corporation — meaning it keeps -794. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: KYMR leads at -891. 3% versus -95. 1% for RLYB. At the gross margin level — before operating expenses — RLYB 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.
06Which pays a better dividend — RLYB or KYMR?
None of the stocks in this comparison currently pay a material dividend.
All are effectively zero-yield and should be held for capital appreciation rather than income.
07Is RLYB or KYMR better for a retirement portfolio?
For long-horizon retirement investors, Kymera Therapeutics, Inc.
(KYMR) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 15), +159. 4% 10Y return). Both have compounded well over 10 years (KYMR: +159. 4%, RLYB: -87. 1%), 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.
08What are the main differences between RLYB and KYMR?
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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