HDSN vs ASX vs AMKR vs AIRG

For growth investors, ASE Technology Holding Co.

, Ltd. (ASX) is the stronger pick with 6. 8% revenue growth year-over-year, versus -14. 6% for Airgain, Inc. (AIRG). Hudson Technologies, Inc. (HDSN) offers the better valuation at 14. 2x trailing P/E (13. 4x forward), making it the more compelling value choice. Analysts rate ASE Technology Holding Co. , Ltd. (ASX) 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, Hudson Technologies, Inc.

(HDSN) is the cheapest at 14. 2x versus ASE Technology Holding Co. , Ltd. at 58. 2x. On forward P/E, ASE Technology Holding Co. , Ltd. is actually cheaper at 1. 0x — 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: ASE Technology Holding Co. , Ltd. wins at 0. 13x versus Amkor Technology, Inc. 's 25. 97x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, ASE Technology Holding Co.

, Ltd. (ASX) delivered a total return of +368. 1%, compared to -61. 6% for Airgain, Inc. (AIRG). Over 10 years, the gap is even starker: AMKR returned +1299% versus AIRG's -10. 9%. 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), Airgain, Inc.

(AIRG) is the lower-risk stock at 0. 22β versus Amkor Technology, Inc. 's 2. 90β — meaning AMKR is approximately 1233% more volatile than AIRG relative to the S&P 500. On balance sheet safety, Hudson Technologies, Inc. (HDSN) carries a lower debt/equity ratio of 1% versus 71% for ASE Technology Holding Co. , Ltd. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), ASE Technology Holding Co.

, Ltd. (ASX) is pulling ahead at 6. 8% versus -14. 6% for Airgain, Inc. (AIRG). On earnings-per-share growth, the picture is similar: Airgain, Inc. grew EPS 31. 6% year-over-year, compared to -28. 8% for Hudson Technologies, Inc.. Over a 3-year CAGR, ASX leads at -1. 5% 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.

Hudson Technologies, Inc.

(HDSN) is the more profitable company, earning 6. 8% net margin versus -12. 4% for Airgain, Inc. — meaning it keeps 6. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ASX leads at 7. 9% versus -16. 4% for AIRG. At the gross margin level — before operating expenses — AIRG leads at 43. 5%, 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, ASE Technology Holding Co. , Ltd. (ASX) is the more undervalued stock at a PEG of 0. 13x versus Amkor Technology, Inc. 's 25. 97x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, ASE Technology Holding Co. , Ltd. (ASX) trades at 1. 0x forward P/E versus 36. 1x for Amkor Technology, Inc. — 35. 0x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for HDSN: 71. 4% to $9. 00.

In this comparison, ASX (1.

0% yield), AMKR (0. 4% yield) pay a dividend. HDSN, AIRG do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Airgain, Inc.

(AIRG) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 22)). Both have compounded well over 10 years (AIRG: -10. 9%, HDSN: +44. 2%), 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 (HDSN (Basic Materials) and ASX (Technology) and AMKR (Technology) and AIRG (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: HDSN is a small-cap deep-value stock; ASX is a mid-cap quality compounder stock; AMKR is a mid-cap quality compounder stock; AIRG is a small-cap quality compounder stock. ASX pays a dividend while HDSN, AMKR, AIRG 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.