SINT vs ATEC

For growth investors, Alphatec Holdings, Inc.

(ATEC) is the stronger pick with 25. 0% revenue growth year-over-year, versus -18. 3% for Sintx Technologies, Inc. (SINT). Analysts rate Alphatec Holdings, Inc. (ATEC) a "Buy" — based on 16 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, Alphatec Holdings, Inc.

(ATEC) delivered a total return of -48. 7%, compared to -100. 0% for Sintx Technologies, Inc. (SINT). Over 10 years, the gap is even starker: ATEC returned +225. 4% versus SINT's -100. 0%. 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), Alphatec Holdings, Inc.

(ATEC) is the lower-risk stock at 1. 13β versus Sintx Technologies, Inc. 's 1. 95β — meaning SINT is approximately 73% more volatile than ATEC relative to the S&P 500. On balance sheet safety, Sintx Technologies, Inc. (SINT) carries a lower debt/equity ratio of 111% 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 -18. 3% for Sintx Technologies, Inc. (SINT). On earnings-per-share growth, the picture is similar: Sintx Technologies, Inc. grew EPS 59. 4% year-over-year, compared to 15. 0% for Alphatec Holdings, Inc.. Over a 3-year CAGR, ATEC leads at 29. 6% 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.

Alphatec Holdings, Inc.

(ATEC) is the more profitable company, earning -18. 8% net margin versus -1678. 1% for Sintx Technologies, Inc. — meaning it keeps -18. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ATEC leads at -10. 7% versus -1053. 1% for SINT. 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.

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, Alphatec Holdings, Inc.

(ATEC) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 13), +225. 4% 10Y return). Sintx Technologies, Inc. (SINT) carries a higher beta of 1. 95 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ATEC: +225. 4%, SINT: -100. 0%), 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: SINT is a small-cap quality compounder stock; ATEC is a small-cap high-growth 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.