AMLX vs LLY vs BIIB vs IQV vs KO

For growth investors, Eli Lilly and Company (LLY) is the stronger pick with 44.

7% revenue growth year-over-year, versus -100. 0% for Amylyx Pharmaceuticals, Inc. (AMLX). Biogen Inc. (BIIB) offers the better valuation at 22. 7x trailing P/E (13. 7x forward), making it the more compelling value choice. Analysts rate Amylyx Pharmaceuticals, Inc. (AMLX) a "Buy" — based on 11 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, Biogen Inc.

(BIIB) is the cheapest at 22. 7x versus Eli Lilly and Company at 49. 4x. On forward P/E, Biogen Inc. is actually cheaper at 13. 7x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: IQVIA Holdings Inc. wins at 0. 35x versus The Coca-Cola Company's 2. 26x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Eli Lilly and Company (LLY) delivered a total return of +412.

1%, compared to -50. 7% for Biogen Inc. (BIIB). Over 10 years, the gap is even starker: LLY returned +1485% versus BIIB's -18. 1%. 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), The Coca-Cola Company (KO) is the lower-risk stock at -0.

20β versus Amylyx Pharmaceuticals, Inc. 's 1. 40β — meaning AMLX is approximately -799% more volatile than KO relative to the S&P 500. On balance sheet safety, Amylyx Pharmaceuticals, Inc. (AMLX) carries a lower debt/equity ratio of 2% versus 2% for IQVIA Holdings Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Eli Lilly and Company (LLY) is pulling ahead at 44.

7% versus -100. 0% for Amylyx Pharmaceuticals, Inc. (AMLX). On earnings-per-share growth, the picture is similar: Eli Lilly and Company grew EPS 96. 0% year-over-year, compared to -21. 1% for Biogen Inc.. Over a 3-year CAGR, LLY leads at 31. 7% 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.

Eli Lilly and Company (LLY) is the more profitable company, earning 31.

7% net margin versus 0. 0% for Amylyx Pharmaceuticals, Inc. — meaning it keeps 31. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: LLY leads at 45. 6% versus 0. 0% for AMLX. At the gross margin level — before operating expenses — LLY leads at 83. 8%, 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.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, IQVIA Holdings Inc. (IQV) is the more undervalued stock at a PEG of 0. 35x versus The Coca-Cola Company's 2. 26x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Biogen Inc. (BIIB) trades at 13. 7x forward P/E versus 30. 9x for Eli Lilly and Company — 17. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AMLX: 88. 5% to $27. 50.

In this comparison, KO (2.

5% yield), LLY (0. 5% yield) pay a dividend. AMLX, BIIB, IQV do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Eli Lilly and Company (LLY) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

53), 0. 5% yield, +1485% 10Y return). Both have compounded well over 10 years (LLY: +1485%, AMLX: -13. 6%), 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.

These companies operate in different sectors (AMLX (Healthcare) and LLY (Healthcare) and BIIB (Healthcare) and IQV (Healthcare) and KO (Consumer Defensive)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: AMLX is a small-cap quality compounder stock; LLY is a mega-cap high-growth stock; BIIB is a mid-cap quality compounder stock; IQV is a mid-cap quality compounder stock; KO is a large-cap quality compounder stock. LLY, KO pay a dividend while AMLX, BIIB, IQV do not, making them suitable for different income and tax situations. 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.