SERA vs DBVT vs NTRA vs ALKS

For growth investors, Natera, Inc.

(NTRA) is the stronger pick with 35. 9% revenue growth year-over-year, versus -5. 2% for Alkermes plc (ALKS). Alkermes plc (ALKS) offers the better valuation at 24. 8x trailing P/E, making it the more compelling value choice. Analysts rate Sera Prognostics, Inc. (SERA) a "Buy" — based on 5 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.

Over the past 5 years, Natera, Inc.

(NTRA) delivered a total return of +115. 9%, compared to -83. 9% for Sera Prognostics, Inc. (SERA). Over 10 years, the gap is even starker: NTRA returned +20. 9% versus DBVT's -87. 0%. 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), Alkermes plc (ALKS) is the lower-risk stock at 1.

06β versus Sera Prognostics, Inc. 's 1. 56β — meaning SERA is approximately 47% more volatile than ALKS relative to the S&P 500. On balance sheet safety, Sera Prognostics, Inc. (SERA) carries a lower debt/equity ratio of 3% versus 13% for DBV Technologies S. A. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Natera, Inc.

(NTRA) is pulling ahead at 35. 9% versus -5. 2% for Alkermes plc (ALKS). On earnings-per-share growth, the picture is similar: Sera Prognostics, Inc. grew EPS 32. 3% year-over-year, compared to -347. 5% for DBV Technologies S. A.. Over a 3-year CAGR, NTRA leads at 41. 1% annualised revenue growth. 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.

Alkermes plc (ALKS) is the more profitable company, earning 16.

4% net margin versus -394. 2% for Sera Prognostics, Inc. — meaning it keeps 16. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ALKS leads at 17. 2% versus -450. 7% for SERA. At the gross margin level — before operating expenses — ALKS leads at 86. 7%, 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.

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, Alkermes plc (ALKS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1.

06)). Sera Prognostics, Inc. (SERA) carries a higher beta of 1. 56 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ALKS: -11. 0%, SERA: -83. 9%), 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.

In terms of investment character: SERA is a small-cap quality compounder stock; DBVT is a mega-cap quality compounder stock; NTRA is a mid-cap high-growth stock; ALKS is a small-cap quality compounder stock. 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.