IRIX vs ISRG vs SYK vs HOLX vs ATRC

For growth investors, Intuitive Surgical, Inc.

(ISRG) is the stronger pick with 20. 5% revenue growth year-over-year, versus -6. 2% for IRIDEX Corporation (IRIX). Hologic, Inc. (HOLX) offers the better valuation at 30. 5x trailing P/E (17. 2x forward), making it the more compelling value choice. Analysts rate Intuitive Surgical, Inc. (ISRG) a "Buy" — based on 55 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, Hologic, Inc.

(HOLX) is the cheapest at 30. 5x versus Intuitive Surgical, Inc. at 57. 2x. On forward P/E, Hologic, Inc. is actually cheaper at 17. 2x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Stryker Corporation wins at 1. 28x versus Intuitive Surgical, Inc. 's 1. 99x — a reasonable growth-adjusted valuation.

Over the past 5 years, Intuitive Surgical, Inc.

(ISRG) delivered a total return of +61. 7%, compared to -86. 2% for IRIDEX Corporation (IRIX). Over 10 years, the gap is even starker: ISRG returned +549. 2% versus IRIX's -90. 8%. 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), Hologic, Inc.

(HOLX) is the lower-risk stock at 0. 45β versus IRIDEX Corporation's 1. 16β — meaning IRIX is approximately 155% more volatile than HOLX relative to the S&P 500. On balance sheet safety, Intuitive Surgical, Inc. (ISRG) carries a lower debt/equity ratio of 2% versus 2% for IRIDEX Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Intuitive Surgical, Inc.

(ISRG) is pulling ahead at 20. 5% versus -6. 2% for IRIDEX Corporation (IRIX). On earnings-per-share growth, the picture is similar: AtriCure, Inc. grew EPS 74. 7% year-over-year, compared to -25. 0% for Hologic, Inc.. Over a 3-year CAGR, ATRC leads at 17. 4% 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.

Intuitive Surgical, Inc.

(ISRG) is the more profitable company, earning 28. 4% net margin versus -18. 3% for IRIDEX Corporation — meaning it keeps 28. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ISRG leads at 29. 3% versus -17. 1% for IRIX. At the gross margin level — before operating expenses — ATRC leads at 74. 4%, 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, Stryker Corporation (SYK) is the more undervalued stock at a PEG of 1. 28x versus Intuitive Surgical, Inc. 's 1. 99x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Hologic, Inc. (HOLX) trades at 17. 2x forward P/E versus 428. 7x for AtriCure, Inc. — 411. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ATRC: 95. 3% to $51. 33.

In this comparison, SYK (1.

2% yield) pays a dividend. IRIX, ISRG, HOLX, ATRC do not pay a meaningful dividend and should not be held primarily for income.

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

52), 1. 2% yield, +179. 2% 10Y return). Both have compounded well over 10 years (SYK: +179. 2%, IRIX: -90. 8%), 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: IRIX is a small-cap quality compounder stock; ISRG is a mid-cap high-growth stock; SYK is a mid-cap quality compounder stock; HOLX is a mid-cap quality compounder stock; ATRC is a small-cap quality compounder stock. SYK pays a dividend while IRIX, ISRG, HOLX, ATRC 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.