MX vs AOSL

For growth investors, Alpha and Omega Semiconductor Limited (AOSL) is the stronger pick with 5.

9% revenue growth year-over-year, versus -22. 8% for Magnachip Semiconductor Corporation (MX). Analysts rate Magnachip Semiconductor Corporation (MX) a "Buy" — based on 22 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, Alpha and Omega Semiconductor Limited (AOSL) delivered a total return of +23.

2%, compared to -84. 1% for Magnachip Semiconductor Corporation (MX). Over 10 years, the gap is even starker: AOSL returned +172. 1% versus MX's -23. 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), Magnachip Semiconductor Corporation (MX) is the lower-risk stock at 2.

29β versus Alpha and Omega Semiconductor Limited's 2. 81β — meaning AOSL is approximately 23% more volatile than MX relative to the S&P 500. On balance sheet safety, Alpha and Omega Semiconductor Limited (AOSL) carries a lower debt/equity ratio of 6% versus 19% for Magnachip Semiconductor Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Alpha and Omega Semiconductor Limited (AOSL) is pulling ahead at 5.

9% versus -22. 8% for Magnachip Semiconductor Corporation (MX). On earnings-per-share growth, the picture is similar: Magnachip Semiconductor Corporation grew EPS 43. 1% year-over-year, compared to -746. 2% for Alpha and Omega Semiconductor Limited. Over a 3-year CAGR, AOSL leads at -3. 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.

Alpha and Omega Semiconductor Limited (AOSL) is the more profitable company, earning -13.

9% net margin versus -16. 6% for Magnachip Semiconductor Corporation — meaning it keeps -13. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AOSL leads at -4. 1% versus -17. 3% for MX. At the gross margin level — before operating expenses — AOSL leads at 23. 1%, 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, Alpha and Omega Semiconductor Limited (AOSL) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+172.

1% 10Y return). Magnachip Semiconductor Corporation (MX) carries a higher beta of 2. 29 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AOSL: +172. 1%, MX: -23. 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 Technology sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

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.