TMO vs DHR vs A vs WAT vs BIO

For growth investors, Waters Corporation (WAT) is the stronger pick with 7.

0% revenue growth year-over-year, versus 0. 7% for Bio-Rad Laboratories, Inc. (BIO). Bio-Rad Laboratories, Inc. (BIO) offers the better valuation at 9. 2x trailing P/E (25. 0x forward), making it the more compelling value choice. Analysts rate Thermo Fisher Scientific Inc. (TMO) a "Buy" — based on 42 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, Bio-Rad Laboratories, Inc.

(BIO) is the cheapest at 9. 2x versus Danaher Corporation at 34. 6x. On forward P/E, Thermo Fisher Scientific Inc. is actually cheaper at 18. 8x — 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: Agilent Technologies, Inc. wins at 1. 34x versus Danaher Corporation's 34. 15x — a reasonable growth-adjusted valuation.

Over the past 5 years, Waters Corporation (WAT) delivered a total return of +11.

0%, compared to -57. 2% for Bio-Rad Laboratories, Inc. (BIO). Over 10 years, the gap is even starker: TMO returned +229. 0% versus BIO's +79. 3%. 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), Bio-Rad Laboratories, Inc.

(BIO) is the lower-risk stock at 0. 92β versus Agilent Technologies, Inc. 's 1. 23β — meaning A is approximately 33% more volatile than BIO relative to the S&P 500. On balance sheet safety, Bio-Rad Laboratories, Inc. (BIO) carries a lower debt/equity ratio of 21% versus 76% for Thermo Fisher Scientific Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Waters Corporation (WAT) is pulling ahead at 7.

0% versus 0. 7% for Bio-Rad Laboratories, Inc. (BIO). On earnings-per-share growth, the picture is similar: Bio-Rad Laboratories, Inc. grew EPS 142. 6% year-over-year, compared to -4. 7% for Danaher Corporation. Over a 3-year CAGR, WAT leads at 2. 1% 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.

Bio-Rad Laboratories, Inc.

(BIO) is the more profitable company, earning 29. 4% net margin versus 14. 7% for Danaher Corporation — meaning it keeps 29. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: WAT leads at 28. 2% versus 10. 5% for BIO. At the gross margin level — before operating expenses — DHR leads at 60. 9%, 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, Agilent Technologies, Inc. (A) is the more undervalued stock at a PEG of 1. 34x versus Danaher Corporation's 34. 15x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Thermo Fisher Scientific Inc. (TMO) trades at 18. 8x forward P/E versus 25. 0x for Bio-Rad Laboratories, Inc. — 6. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for DHR: 41. 4% to $247. 00.

In this comparison, A (0.

8% yield), DHR (0. 7% yield), TMO (0. 4% yield) pay a dividend. WAT, BIO do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Danaher Corporation (DHR) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

94), 0. 7% yield, +220. 9% 10Y return). Both have compounded well over 10 years (DHR: +220. 9%, WAT: +161. 3%), 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: TMO is a mid-cap quality compounder stock; DHR is a mid-cap quality compounder stock; A is a mid-cap quality compounder stock; WAT is a mid-cap quality compounder stock; BIO is a small-cap deep-value stock. DHR, A pay a dividend while TMO, WAT, BIO 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.