NNOX vs ATEC vs SYK vs ISRG

For growth investors, Alphatec Holdings, Inc.

(ATEC) is the stronger pick with 25. 0% revenue growth year-over-year, versus 11. 2% for Stryker Corporation (SYK). Stryker Corporation (SYK) offers the better valuation at 34. 0x trailing P/E (19. 1x forward), making it the more compelling value choice. Analysts rate Nano-X Imaging Ltd. (NNOX) a "Buy" — based on 5 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, Stryker Corporation (SYK) is the cheapest at 34.

0x versus Intuitive Surgical, Inc. at 57. 2x. On forward P/E, Stryker Corporation is actually cheaper at 19. 1x. 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 -93. 4% for Nano-X Imaging Ltd. (NNOX). Over 10 years, the gap is even starker: ISRG returned +549. 2% versus NNOX's -96. 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), Stryker Corporation (SYK) is the lower-risk stock at 0.

52β versus Nano-X Imaging Ltd. 's 1. 75β — meaning NNOX is approximately 235% more volatile than SYK relative to the S&P 500. On balance sheet safety, Intuitive Surgical, Inc. (ISRG) carries a lower debt/equity ratio of 2% versus 17% for Alphatec Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Alphatec Holdings, Inc.

(ATEC) is pulling ahead at 25. 0% versus 11. 2% for Stryker Corporation (SYK). On earnings-per-share growth, the picture is similar: Intuitive Surgical, Inc. grew EPS 22. 6% year-over-year, compared to 8. 2% for Stryker Corporation. Over a 3-year CAGR, NNOX leads at 105. 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.

Intuitive Surgical, Inc.

(ISRG) is the more profitable company, earning 28. 4% net margin versus -474. 3% for Nano-X Imaging Ltd. — 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 -502. 9% for NNOX. At the gross margin level — before operating expenses — ATEC leads at 69. 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, 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, Stryker Corporation (SYK) trades at 19. 1x forward P/E versus 43. 3x for Intuitive Surgical, Inc. — 24. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for NNOX: 940. 5% to $18. 00.

In this comparison, SYK (1.

2% yield) pays a dividend. NNOX, ATEC, ISRG 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). Nano-X Imaging Ltd. (NNOX) carries a higher beta of 1. 75 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (SYK: +179. 2%, NNOX: -96. 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: NNOX is a small-cap quality compounder stock; ATEC is a small-cap high-growth stock; SYK is a mid-cap quality compounder stock; ISRG is a mid-cap high-growth stock. SYK pays a dividend while NNOX, ATEC, ISRG 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.