SERV vs RLAY vs CART vs KYMR

For growth investors, Relay Therapeutics, Inc.

(RLAY) is the stronger pick with 53. 4% revenue growth year-over-year, versus -16. 7% for Kymera Therapeutics, Inc. (KYMR). Instacart (Maplebear Inc. ) (CART) offers the better valuation at 27. 7x trailing P/E (16. 7x forward), making it the more compelling value choice. Analysts rate Serve Robotics Inc. (SERV) a "Buy" — based on 20 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, Kymera Therapeutics, Inc.

(KYMR) delivered a total return of +100. 6%, compared to -57. 2% for Relay Therapeutics, Inc. (RLAY). Over 10 years, the gap is even starker: KYMR returned +159. 4% versus RLAY's -63. 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), Instacart (Maplebear Inc.

) (CART) is the lower-risk stock at 0. 39β versus Serve Robotics Inc. 's 4. 09β — meaning SERV is approximately 959% more volatile than CART relative to the S&P 500. On balance sheet safety, Instacart (Maplebear Inc. ) (CART) carries a lower debt/equity ratio of 1% versus 6% for Relay Therapeutics, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Relay Therapeutics, Inc.

(RLAY) is pulling ahead at 53. 4% versus -16. 7% for Kymera Therapeutics, Inc. (KYMR). On earnings-per-share growth, the picture is similar: Instacart (Maplebear Inc. ) grew EPS 112. 7% year-over-year, compared to -52. 3% for Serve Robotics Inc.. Over a 3-year CAGR, SERV leads at 190. 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.

Instacart (Maplebear Inc.

) (CART) is the more profitable company, earning 13. 5% net margin versus -38. 2% for Serve Robotics Inc. — meaning it keeps 13. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: CART leads at 14. 5% versus -42. 5% for SERV. At the gross margin level — before operating expenses — KYMR leads at 100. 0%, 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 SERV: 78.

7% to $16. 33.

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, Instacart (Maplebear Inc.

) (CART) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 39)). Serve Robotics Inc. (SERV) carries a higher beta of 4. 09 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CART: +19. 3%, SERV: +80. 1%), 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 (SERV (Industrials) and RLAY (Healthcare) and CART (Consumer Cyclical) and KYMR (Healthcare)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: SERV is a small-cap high-growth stock; RLAY is a small-cap high-growth stock; CART is a mid-cap quality compounder stock; KYMR 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.