ALKS vs SUPN

For growth investors, Supernus Pharmaceuticals, Inc.

(SUPN) is the stronger pick with 8. 6% revenue growth year-over-year, versus -5. 2% for Alkermes plc (ALKS). Alkermes plc (ALKS) offers the better valuation at 24. 7x trailing P/E, making it the more compelling value choice. Analysts rate Alkermes plc (ALKS) a "Buy" — based on 28 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, Supernus Pharmaceuticals, Inc.

(SUPN) delivered a total return of +75. 7%, compared to +60. 5% for Alkermes plc (ALKS). Over 10 years, the gap is even starker: SUPN returned +240. 3% versus ALKS's -7. 7%. 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), Supernus Pharmaceuticals, Inc.

(SUPN) is the lower-risk stock at 0. 78β versus Alkermes plc's 1. 06β — meaning ALKS is approximately 35% more volatile than SUPN relative to the S&P 500. On balance sheet safety, Alkermes plc (ALKS) carries a lower debt/equity ratio of 4% versus 4% for Supernus Pharmaceuticals, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Supernus Pharmaceuticals, Inc.

(SUPN) is pulling ahead at 8. 6% versus -5. 2% for Alkermes plc (ALKS). On earnings-per-share growth, the picture is similar: Alkermes plc grew EPS -34. 1% year-over-year, compared to -151. 5% for Supernus Pharmaceuticals, Inc.. Over a 3-year CAGR, ALKS leads at 9. 9% 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 -5. 4% for Supernus Pharmaceuticals, 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 -5. 1% for SUPN. At the gross margin level — before operating expenses — SUPN leads at 89. 6%, 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.

Analyst consensus price targets imply the most upside for ALKS: 24.

6% to $44. 00.

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, Supernus Pharmaceuticals, Inc.

(SUPN) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 78), +240. 3% 10Y return). Both have compounded well over 10 years (SUPN: +240. 3%, ALKS: -7. 7%), 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.