TNXP vs INVA vs AXSM vs PRGO vs MCK

For growth investors, Axsome Therapeutics, Inc.

(AXSM) is the stronger pick with 65. 5% revenue growth year-over-year, versus -2. 8% for Perrigo Company plc (PRGO). Innoviva, Inc. (INVA) offers the better valuation at 6. 9x trailing P/E (11. 9x forward), making it the more compelling value choice. Analysts rate Tonix Pharmaceuticals Holding Corp. (TNXP) a "Buy" — based on 7 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 McKesson Corporation at 29. 2x. On forward P/E, Perrigo Company plc is actually cheaper at 5. 6x — 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: McKesson Corporation wins at 0. 49x versus Innoviva, Inc. 's 1. 15x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, McKesson Corporation (MCK) delivered a total return of +286.

9%, compared to -100. 0% for Tonix Pharmaceuticals Holding Corp. (TNXP). Over 10 years, the gap is even starker: AXSM returned +1886% versus TNXP's -100. 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), McKesson Corporation (MCK) is the lower-risk stock at 0.

04β versus Tonix Pharmaceuticals Holding Corp. 's 3. 21β — meaning TNXP is approximately 7352% more volatile than MCK relative to the S&P 500. On balance sheet safety, Tonix Pharmaceuticals Holding Corp. (TNXP) carries a lower debt/equity ratio of 4% versus 3% for Axsome Therapeutics, Inc. — giving it more financial flexibility in a downturn.

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

(AXSM) is pulling ahead at 65. 5% versus -2. 8% for Perrigo Company plc (PRGO). On earnings-per-share growth, the picture is similar: Innoviva, Inc. grew EPS 816. 7% year-over-year, compared to -723. 2% for Perrigo Company plc. Over a 3-year CAGR, AXSM leads at 133. 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.

Innoviva, Inc.

(INVA) is the more profitable company, earning 63. 8% net margin versus -1288. 3% for Tonix Pharmaceuticals Holding Corp. — 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 -1354. 3% for TNXP. At the gross margin level — before operating expenses — AXSM leads at 92. 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.

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, McKesson Corporation (MCK) is the more undervalued stock at a PEG of 0. 49x versus Innoviva, Inc. 's 1. 15x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Perrigo Company plc (PRGO) trades at 5. 6x forward P/E versus 19. 3x for McKesson Corporation — 13. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for PRGO: 70. 6% to $20. 00.

In this comparison, PRGO (9.

8% yield), MCK (0. 4% yield) pay a dividend. TNXP, INVA, AXSM do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Axsome Therapeutics, Inc.

(AXSM) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 69), +1886% 10Y return). Tonix Pharmaceuticals Holding Corp. (TNXP) carries a higher beta of 3. 21 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AXSM: +1886%, TNXP: -100. 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.

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: TNXP is a small-cap high-growth stock; INVA is a small-cap high-growth stock; AXSM is a mid-cap high-growth stock; PRGO is a small-cap income-oriented stock; MCK is a mid-cap high-growth stock. PRGO pays a dividend while TNXP, INVA, AXSM, MCK 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.