MX vs POWI

For growth investors, Power Integrations, Inc.

(POWI) is the stronger pick with 5. 9% revenue growth year-over-year, versus -22. 8% for Magnachip Semiconductor Corporation (MX). Power Integrations, Inc. (POWI) offers the better valuation at 200. 6x trailing P/E (60. 5x forward), making it the more compelling value choice. 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, Power Integrations, Inc.

(POWI) delivered a total return of +1. 4%, compared to -83. 6% for Magnachip Semiconductor Corporation (MX). Over 10 years, the gap is even starker: POWI returned +264. 8% versus MX's -22. 6%. 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), Power Integrations, Inc.

(POWI) is the lower-risk stock at 2. 08β versus Magnachip Semiconductor Corporation's 2. 29β — meaning MX is approximately 10% more volatile than POWI relative to the S&P 500.

By revenue growth (latest reported year), Power Integrations, Inc.

(POWI) 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 -30. 4% for Power Integrations, Inc.. Over a 3-year CAGR, POWI leads at -12. 0% 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.

Power Integrations, Inc.

(POWI) is the more profitable company, earning 5. 0% net margin versus -16. 6% for Magnachip Semiconductor Corporation — meaning it keeps 5. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: POWI leads at 4. 8% versus -17. 3% for MX. At the gross margin level — before operating expenses — POWI leads at 54. 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.

Analyst consensus price targets imply the most upside for MX: 103.

0% to $8. 00.

In this comparison, POWI (1.

1% yield) pays a dividend. MX does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Power Integrations, Inc.

(POWI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (1. 1% yield, +264. 8% 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 (POWI: +264. 8%, MX: -22. 6%), 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.

POWI pays a dividend while MX does 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.