Compare Auna S.A. (AUNA) vs Fresenius Medical Care AG & Co. KGaA (FMS) Stock

Auna S.A. (AUNA) offers the better valuation at 11.0x trailing P/E (1.6x forward), making it the more compelling value choice. Analysts rate Auna S.A. (AUNA) a "Hold" — based on 1 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.

On trailing P/E, Auna S.A. (AUNA) is the cheapest at 11.0x versus Fresenius Medical Care AG & Co. KGaA at 11.8x. On forward P/E, Auna S.A. is actually cheaper at 1.6x.

Over the past 5 years, Fresenius Medical Care AG & Co. KGaA (FMS) delivered a total return of -22.8%, compared to -44.4% for Auna S.A. (AUNA). A $10,000 investment in FMS five years ago would be worth approximately $8K today (assuming dividends reinvested). Over 10 years, the gap is even starker: FMS returned -28.5% versus AUNA's -44.4%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Fresenius Medical Care AG & Co. KGaA (FMS) is the lower-risk stock at 0.40β versus Auna S.A.'s 0.43β — meaning AUNA is approximately 8% more volatile than FMS relative to the S&P 500. On balance sheet safety, Fresenius Medical Care AG & Co. KGaA (FMS) carries a lower debt/equity ratio of 76% versus 2% for Auna S.A. — giving it more financial flexibility in a downturn.

Fresenius Medical Care AG & Co. KGaA (FMS) is the more profitable company, earning 5.0% net margin versus 2.5% for Auna S.A. — meaning it keeps 5.0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AUNA leads at 16.1% versus 9.3% for FMS. At the gross margin level — before operating expenses — AUNA leads at 37.2%, 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.

On forward earnings alone, Auna S.A. (AUNA) trades at 1.6x forward P/E versus 9.9x for Fresenius Medical Care AG & Co. KGaA — 8.3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AUNA: 42.9% to $7.63.

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.

For long-horizon retirement investors, Fresenius Medical Care AG & Co. KGaA (FMS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.40)). Both have compounded well over 10 years (FMS: -28.5%, AUNA: -44.4%), 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.

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.