IMRX vs ACAD vs INVA vs PRTA vs ARQT vs KO

For growth investors, Arcutis Biotherapeutics, Inc.

(ARQT) is the stronger pick with 91. 3% revenue growth year-over-year, versus -92. 8% for Prothena Corporation plc (PRTA). Innoviva, Inc. (INVA) offers the better valuation at 6. 9x trailing P/E (6. 4x forward), making it the more compelling value choice. Analysts rate Immuneering Corporation (IMRX) 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, Innoviva, Inc.

(INVA) is the cheapest at 6. 9x versus The Coca-Cola Company at 27. 2x. On forward P/E, Innoviva, Inc. is actually cheaper at 6. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Innoviva, Inc. wins at 0. 62x 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, Innoviva, Inc.

(INVA) delivered a total return of +77. 9%, compared to -82. 7% for Prothena Corporation plc (PRTA). Over 10 years, the gap is even starker: KO returned +121. 1% versus PRTA's -82. 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), The Coca-Cola Company (KO) is the lower-risk stock at -0.

20β versus Prothena Corporation plc's 1. 50β — meaning PRTA is approximately -850% more volatile than KO relative to the S&P 500. On balance sheet safety, Immuneering Corporation (IMRX) carries a lower debt/equity ratio of 2% versus 133% for The Coca-Cola Company — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Arcutis Biotherapeutics, Inc.

(ARQT) is pulling ahead at 91. 3% versus -92. 8% for Prothena Corporation plc (PRTA). On earnings-per-share growth, the picture is similar: Innoviva, Inc. grew EPS 816. 7% year-over-year, compared to -99. 6% for Prothena Corporation plc. Over a 3-year CAGR, ARQT leads at 367. 3% 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.

Innoviva, Inc.

(INVA) is the more profitable company, earning 63. 8% net margin versus -25. 2% for Prothena Corporation plc — meaning it keeps 63. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: INVA leads at 38. 5% versus -1905. 8% for PRTA. At the gross margin level — before operating expenses — ACAD leads at 91. 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.

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, Innoviva, Inc. (INVA) is the more undervalued stock at a PEG of 0. 62x 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, Innoviva, Inc. (INVA) trades at 6. 4x forward P/E versus 176. 7x for Prothena Corporation plc — 170. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for IMRX: 186. 4% to $12. 00.

In this comparison, KO (2.

5% yield) pays a dividend. IMRX, ACAD, INVA, PRTA, ARQT do not pay a meaningful dividend and should not be held primarily for income.

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

20), 2. 5% yield, +121. 1% 10Y return). Prothena Corporation plc (PRTA) carries a higher beta of 1. 50 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (KO: +121. 1%, PRTA: -82. 0%), 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 (IMRX (Healthcare) and ACAD (Healthcare) and INVA (Healthcare) and PRTA (Healthcare) and ARQT (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: IMRX is a small-cap quality compounder stock; ACAD is a small-cap deep-value stock; INVA is a small-cap high-growth stock; PRTA is a small-cap quality compounder stock; ARQT is a small-cap high-growth stock; KO is a large-cap quality compounder stock. KO pays a dividend while IMRX, ACAD, INVA, PRTA, ARQT 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.