Comprehensive Stock Comparison
Compare Cardio Diagnostics Holdings, Inc. (CDIO) vs BiomX Inc. (PHGE) 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 |
|---|---|---|
| Stability / Safety |  PHGE | Beta 0.93 vs CDIO's 2.02 |
| Dividends | Tie | Neither pays a meaningful dividend |
| Momentum (1Y) | PHGE | -48.8% vs CDIO's -62.1% |
| Efficiency (ROA) |  CDIO | -74.5% ROA vs PHGE's -142.8%, ROIC -222.7% vs -305.2% |
Who Each Stock Is For
Income & stability
PHGEbeta 0.93
Growth exposure
PHGEEPS growth 71.2%
Long-term compounding (10Y)
CDIO-98.2% 10Y total return vs PHGE's -99.7%
Sleep-well-at-night portfolio
CDIOLower volatility, beta 2.02, Low D/E 10.1%, current ratio 13.92x
Defensive / Recession hedge
PHGEBeta 0.93, current ratio 2.48x
Business Model
What each company does and how it makes money
Cardio Diagnostics develops and commercializes epigenetics-based clinical tests for cardiovascular disease risk assessment. It generates revenue primarily from sales of its Epi+Gen CHD test—a three-year symptomatic coronary heart disease risk assessment—to healthcare providers and through laboratory services. The company's moat lies in its proprietary epigenetic technology platform that offers more personalized cardiovascular risk prediction than traditional methods.
BiomX is a clinical-stage biotechnology company developing targeted phage therapies — viruses that kill specific harmful bacteria — for chronic diseases and skin conditions. It generates no commercial revenue yet but is funded through equity offerings and partnerships to advance its pipeline, which includes therapies for cystic fibrosis, inflammatory bowel diseases, and atopic dermatitis. The company's key advantage is its proprietary platform for discovering and engineering natural phages that precisely target disease-causing bacteria while sparing beneficial microbes.
Financial Metrics Comparison
Side-by-side fundamentals across 2 stocks. BestLagging
Financial Scorecard
PHGE 3CDIO 1PHGE1/1 metricsCDIO7/9 metricsPHGE4/6 metricsPHGE2/2 metricsPHGE leads in 3 of 6 categories (Financial Metrics, Total Returns). CDIO leads in 1 (Profitability & Efficiency). 1 tied.
Financial Metrics (TTM)
CDIO and PHGE operate at a comparable scale, with $15,782 and $0 in trailing revenue.
| Metric | CDIOCardio Diagnostic… | PHGEBiomX Inc. |
|---|---|---|
| RevenueTrailing 12 months | $15,782 | $0 |
| EBITDAEarnings before interest/tax | -$6M | -$6M |
| Net IncomeAfter-tax profit | -$7M | -$37M |
| Free Cash FlowCash after capex | -$6M | -$28M |
| Gross MarginGross profit ÷ Revenue | -10.3% | — |
| Operating MarginEBIT ÷ Revenue | -414.2% | — |
| Net MarginNet income ÷ Revenue | -415.2% | — |
| FCF MarginFCF ÷ Revenue | -379.5% | — |
| Rev. Growth (YoY)Latest quarter vs prior year | -56.6% | — |
| EPS Growth (YoY)Latest quarter vs prior year | -15.3% | -6.5% |
Valuation Metrics
| Metric | CDIOCardio Diagnostic… | PHGEBiomX Inc. |
|---|---|---|
| Market CapShares × price | $141M | $82.8B |
| Enterprise ValueMkt cap + debt − cash | $135M | $82.8B |
| Trailing P/EPrice ÷ TTM EPS | -0.57x | -4.29x |
| Forward P/EPrice ÷ next-FY EPS est. | — | — |
| PEG RatioP/E ÷ EPS growth rate | — | — |
| EV / EBITDAEnterprise value multiple | — | — |
| Price / SalesMarket cap ÷ Revenue | 4054.38x | — |
| Price / BookPrice ÷ Book value/share | 14.80x | 3427.64x |
| Price / FCFMarket cap ÷ FCF | — | — |
Profitability & Efficiency
CDIO delivers a -80.4% return on equity — every $100 of shareholder capital generates $-80 in annual profit, vs $-4 for PHGE. CDIO carries lower financial leverage with a 0.10x debt-to-equity ratio, signaling a more conservative balance sheet compared to PHGE's 0.40x. On the Piotroski fundamental quality scale (0–9), CDIO scores 4/9 vs PHGE's 3/9, reflecting mixed financial health.
| Metric | CDIOCardio Diagnostic… | PHGEBiomX Inc. |
|---|---|---|
| ROE (TTM)Return on equity | -80.4% | -3.6% |
| ROA (TTM)Return on assets | -74.5% | -142.8% |
| ROICReturn on invested capital | -2.2% | -3.1% |
| ROCEReturn on capital employed | -123.0% | -159.9% |
| Piotroski ScoreFundamental quality 0–9 | 4 | 3 |
| Debt / EquityFinancial leverage | 0.10x | 0.40x |
| Net DebtTotal debt minus cash | -$7M | -$8M |
| Cash & Equiv.Liquid assets | $8M | $18M |
| Total DebtShort + long-term debt | $969,863 | $10M |
| Interest CoverageEBIT ÷ Interest expense | -418.04x | -36.86x |
Total Returns (with DRIP)
A $10,000 investment in CDIO five years ago would be worth $179 today (with dividends reinvested), compared to $47 for PHGE. Over the past 12 months, PHGE leads with a -48.8% total return vs CDIO's -62.1%. The 3-year compound annual growth rate (CAGR) favors PHGE at -59.1% vs CDIO's -68.0% — a key indicator of consistent wealth creation.
| Metric | CDIOCardio Diagnostic… | PHGEBiomX Inc. |
|---|---|---|
| YTD ReturnYear-to-date | +85.2% | +194.4% |
| 1-Year ReturnPast 12 months | -62.1% | -48.8% |
| 3-Year ReturnCumulative with dividends | -96.7% | -93.2% |
| 5-Year ReturnCumulative with dividends | -98.2% | -99.5% |
| 10-Year ReturnCumulative with dividends | -98.2% | -99.7% |
| CAGR (3Y)Annualised 3-year return | -68.0% | -59.1% |
Risk & Volatility
PHGE is the less volatile stock with a 0.93 beta — it tends to amplify market swings less than CDIO's 2.02 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. PHGE currently trades 42.8% from its 52-week high vs CDIO's 30.2% drawdown — a narrower gap to the peak suggests stronger recent price momentum.
| Metric | CDIOCardio Diagnostic… | PHGEBiomX Inc. |
|---|---|---|
| Beta (5Y)Sensitivity to S&P 500 | 2.02x | 0.93x |
| 52-Week HighHighest price in past year | $17.39 | $14.71 |
| 52-Week LowLowest price in past year | $0.97 | $1.56 |
| % of 52W HighCurrent price vs 52-week peak | +30.2% | +42.8% |
| RSI (14)Momentum oscillator 0–100 | 64.3 | 51.0 |
| Avg Volume (50D)Average daily shares traded | 3.3M | 1.3M |
Analyst Outlook
| Metric | CDIOCardio Diagnostic… | PHGEBiomX Inc. |
|---|---|---|
| Analyst RatingConsensus buy/hold/sell | — | — |
| Price TargetConsensus 12-month target | — | — |
| # AnalystsCovering analysts | — | — |
| Dividend YieldAnnual dividend ÷ price | — | — |
| Dividend StreakConsecutive years of raises | — | — |
| Dividend / ShareAnnual DPS | — | — |
| 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 | Jan 22 | Mar 26 | Change |
|---|---|---|---|
| Cardio Diagnostics … (CDIO) | 100 | 1.77 | -98.2% |
| BiomX Inc. (PHGE) | 100 | 1.29 | -98.7% |
Cardio Diagnostics … (CDIO) returned -98% over 5 years vs BiomX Inc. (PHGE)'s -100%.
Chart 2Revenue Growth — 10 Years
| Stock | 2017 | 2024 | Change |
|---|---|---|---|
| Cardio Diagnostics … (CDIO) | $0.00 | $34890.00 | — |
| BiomX Inc. (PHGE) | $0.00 | $0.00 | — |
BiomX Inc.'s revenue grew from $0M (2017) to $0M (2024) — a 0.0% CAGR.
Chart 3EPS Growth — 10 Years
| Stock | 2017 | 2024 | Change |
|---|---|---|---|
| Cardio Diagnostics … (CDIO) | -0.06 | -9.3 | -14522.6% |
| BiomX Inc. (PHGE) | -3.27 | -1.47 | +55.0% |
BiomX Inc.'s EPS grew from $-3.27 (2017) to $-1.47 (2024).
Chart 4Free Cash Flow — 5 Years
Cardio Diagnostics Holdings, Inc. generated $-5M FCF in 2024 (-672% vs 2021). BiomX Inc. generated $-37M FCF in 2024 (-18% vs 2021).
CDIO vs PHGE: Frequently Asked Questions
6 questions · data-driven answers · updated daily
01Which is the better long-term investment — CDIO or PHGE?
Over the past 5 years, Cardio Diagnostics Holdings, Inc. (CDIO) delivered a total return of -98.2%, compared to -99.5% for BiomX Inc. (PHGE). A $10,000 investment in CDIO five years ago would be worth approximately $179 today (assuming dividends reinvested). Over 10 years, the gap is even starker: CDIO returned -98.2% versus PHGE's -99.7%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.
02Which is safer — CDIO or PHGE?
By beta (market sensitivity over 5 years), BiomX Inc. (PHGE) is the lower-risk stock at 0.93β versus Cardio Diagnostics Holdings, Inc.'s 2.02β — meaning CDIO is approximately 119% more volatile than PHGE relative to the S&P 500. On balance sheet safety, Cardio Diagnostics Holdings, Inc. (CDIO) carries a lower debt/equity ratio of 10% versus 40% for BiomX Inc. — giving it more financial flexibility in a downturn.
03Which has better profit margins — CDIO or PHGE?
BiomX Inc. (PHGE) is the more profitable company, earning 0.0% net margin versus -240.3% for Cardio Diagnostics Holdings, Inc. — meaning it keeps 0.0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PHGE leads at 0.0% versus -239.8% for CDIO. At the gross margin level — before operating expenses — CDIO 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.
04Which pays a better dividend — CDIO or PHGE?
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.
05Is CDIO or PHGE better for a retirement portfolio?
For long-horizon retirement investors, BiomX Inc. (PHGE) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.93)). Cardio Diagnostics Holdings, Inc. (CDIO) carries a higher beta of 2.02 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (PHGE: -99.7%, CDIO: -98.2%), 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.
06What are the main differences between CDIO and PHGE?
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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