KZR vs ABBV vs BMY vs AMGN vs REGN

For growth investors, Amgen Inc.

(AMGN) is the stronger pick with 9. 9% revenue growth year-over-year, versus -0. 2% for Bristol-Myers Squibb Company (BMY). Regeneron Pharmaceuticals, Inc. (REGN) offers the better valuation at 14. 8x trailing P/E (13. 2x forward), making it the more compelling value choice. Analysts rate AbbVie Inc. (ABBV) a "Buy" — based on 41 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, Regeneron Pharmaceuticals, Inc.

(REGN) is the cheapest at 14. 8x versus AbbVie Inc. at 96. 1x. On forward P/E, Bristol-Myers Squibb Company is actually cheaper at 9. 0x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Regeneron Pharmaceuticals, Inc. wins at 2. 08x versus Amgen Inc. 's 5. 39x.

Over the past 5 years, AbbVie Inc.

(ABBV) delivered a total return of +123. 7%, compared to -98. 7% for Kezar Life Sciences, Inc. (KZR). Over 10 years, the gap is even starker: ABBV returned +362. 2% versus KZR's -99. 6%. 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), AbbVie Inc.

(ABBV) is the lower-risk stock at 0. 14β versus Kezar Life Sciences, Inc. 's 0. 72β — meaning KZR is approximately 428% more volatile than ABBV relative to the S&P 500. On balance sheet safety, Kezar Life Sciences, Inc. (KZR) carries a lower debt/equity ratio of 3% versus 6% for Amgen Inc. — giving it more financial flexibility in a downturn.

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

(AMGN) is pulling ahead at 9. 9% versus -0. 2% for Bristol-Myers Squibb Company (BMY). On earnings-per-share growth, the picture is similar: Bristol-Myers Squibb Company grew EPS 178. 2% year-over-year, compared to -566. 1% for Kezar Life Sciences, Inc.. Over a 3-year CAGR, AMGN leads at 11. 8% 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.

Regeneron Pharmaceuticals, Inc.

(REGN) is the more profitable company, earning 31. 4% net margin versus 0. 0% for Kezar Life Sciences, Inc. — meaning it keeps 31. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ABBV leads at 32. 8% versus 0. 0% for KZR. At the gross margin level — before operating expenses — REGN leads at 85. 4%, 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, Regeneron Pharmaceuticals, Inc. (REGN) is the more undervalued stock at a PEG of 2. 08x versus Amgen Inc. 's 5. 39x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Bristol-Myers Squibb Company (BMY) trades at 9. 0x forward P/E versus 16. 0x for AbbVie Inc. — 6. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for REGN: 36. 6% to $836. 00.

In this comparison, BMY (4.

3% yield), ABBV (2. 9% yield), AMGN (2. 7% yield), REGN (0. 6% yield) pay a dividend. KZR does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, AbbVie Inc.

(ABBV) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 14), 2. 9% yield, +362. 2% 10Y return). Both have compounded well over 10 years (ABBV: +362. 2%, KZR: -99. 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.

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: KZR is a small-cap quality compounder stock; ABBV is a large-cap quality compounder stock; BMY is a mid-cap deep-value stock; AMGN is a mid-cap quality compounder stock; REGN is a mid-cap deep-value stock. ABBV, BMY, AMGN, REGN pay a dividend while KZR does 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.