BDSX vs TMO

For growth investors, Biodesix, Inc.

(BDSX) is the stronger pick with 24. 1% revenue growth year-over-year, versus 3. 9% for Thermo Fisher Scientific Inc. (TMO). Thermo Fisher Scientific Inc. (TMO) offers the better valuation at 26. 7x trailing P/E (19. 0x forward), making it the more compelling value choice. Analysts rate Biodesix, Inc. (BDSX) 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.

Over the past 5 years, Thermo Fisher Scientific Inc.

(TMO) delivered a total return of +2. 1%, compared to -94. 7% for Biodesix, Inc. (BDSX). Over 10 years, the gap is even starker: TMO returned +229. 1% versus BDSX's -94. 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), Biodesix, Inc.

(BDSX) is the lower-risk stock at 0. 25β versus Thermo Fisher Scientific Inc. 's 1. 10β — meaning TMO is approximately 331% more volatile than BDSX relative to the S&P 500.

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

(BDSX) is pulling ahead at 24. 1% versus 3. 9% for Thermo Fisher Scientific Inc. (TMO). On earnings-per-share growth, the picture is similar: Biodesix, Inc. grew EPS 29. 2% year-over-year, compared to 7. 3% for Thermo Fisher Scientific Inc.. Over a 3-year CAGR, BDSX leads at 32. 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.

Thermo Fisher Scientific Inc.

(TMO) is the more profitable company, earning 15. 1% net margin versus -39. 8% for Biodesix, Inc. — meaning it keeps 15. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TMO leads at 18. 2% versus -31. 5% for BDSX. At the gross margin level — before operating expenses — BDSX leads at 75. 2%, 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 TMO: 38.

4% to $654. 67.

In this comparison, TMO (0.

4% yield) pays a dividend. BDSX does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Biodesix, Inc.

(BDSX) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 25)). Both have compounded well over 10 years (BDSX: -94. 1%, TMO: +229. 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.

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: BDSX is a small-cap high-growth stock; TMO is a mid-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.