NAII vs AMZN

For growth investors, Natural Alternatives International, Inc.

(NAII) is the stronger pick with 14. 1% revenue growth year-over-year, versus 12. 4% for Amazon. com, Inc. (AMZN). Amazon. com, Inc. (AMZN) offers the better valuation at 37. 8x trailing P/E (34. 8x forward), making it the more compelling value choice. Analysts rate Amazon. com, Inc. (AMZN) a "Buy" — based on 94 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, Amazon.

com, Inc. (AMZN) delivered a total return of +64. 8%, compared to -81. 6% for Natural Alternatives International, Inc. (NAII). Over 10 years, the gap is even starker: AMZN returned +697. 8% versus NAII's -76. 2%. 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), Natural Alternatives International, Inc.

(NAII) is the lower-risk stock at 0. 82β versus Amazon. com, Inc. 's 1. 51β — meaning AMZN is approximately 83% more volatile than NAII relative to the S&P 500. On balance sheet safety, Amazon. com, Inc. (AMZN) carries a lower debt/equity ratio of 37% versus 86% for Natural Alternatives International, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Natural Alternatives International, Inc.

(NAII) is pulling ahead at 14. 1% versus 12. 4% for Amazon. com, Inc. (AMZN). On earnings-per-share growth, the picture is similar: Amazon. com, Inc. grew EPS 29. 7% year-over-year, compared to -85. 4% for Natural Alternatives International, Inc.. Over a 3-year CAGR, AMZN leads at 11. 7% 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.

Amazon.

com, Inc. (AMZN) is the more profitable company, earning 10. 8% net margin versus -10. 5% for Natural Alternatives International, Inc. — meaning it keeps 10. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AMZN leads at 11. 2% versus -6. 7% for NAII. At the gross margin level — before operating expenses — AMZN leads at 50. 3%, 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, Natural Alternatives International, Inc.

(NAII) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 82)). Amazon. com, Inc. (AMZN) carries a higher beta of 1. 51 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (NAII: -76. 2%, AMZN: +697. 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.

These companies operate in different sectors (NAII (Consumer Defensive) and AMZN (Consumer Cyclical)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

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.