ZYME vs TPST

Analysts rate Zymeworks Inc.

(ZYME) 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, Zymeworks Inc.

(ZYME) delivered a total return of -12. 2%, compared to -88. 0% for Tempest Therapeutics, Inc. (TPST). Over 10 years, the gap is even starker: ZYME returned +104. 6% versus TPST's -99. 9%. 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), Zymeworks Inc.

(ZYME) is the lower-risk stock at 0. 97β versus Tempest Therapeutics, Inc. 's 1. 70β — meaning TPST is approximately 75% more volatile than ZYME relative to the S&P 500. On balance sheet safety, Zymeworks Inc. (ZYME) carries a lower debt/equity ratio of 7% versus 80% for Tempest Therapeutics, Inc. — giving it more financial flexibility in a downturn.

On earnings-per-share growth, the picture is similar: Zymeworks Inc.

grew EPS 33. 3% year-over-year, compared to 21. 5% for Tempest Therapeutics, Inc.. 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.

Tempest Therapeutics, Inc.

(TPST) is the more profitable company, earning 0. 0% net margin versus -76. 6% for Zymeworks Inc. — meaning it keeps 0. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TPST leads at 0. 0% versus -87. 3% for ZYME. At the gross margin level — before operating expenses — ZYME leads at 89. 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.

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, Zymeworks Inc.

(ZYME) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 97), +104. 6% 10Y return). Tempest Therapeutics, Inc. (TPST) carries a higher beta of 1. 70 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ZYME: +104. 6%, TPST: -99. 9%), 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: ZYME is a small-cap high-growth stock; TPST 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.