ON vs DIOD vs POWI vs WOLF

For growth investors, Diodes Incorporated (DIOD) is the stronger pick with 13.

0% revenue growth year-over-year, versus -15. 3% for ON Semiconductor Corporation (ON). Diodes Incorporated (DIOD) offers the better valuation at 78. 7x trailing P/E (50. 0x forward), making it the more compelling value choice. Analysts rate ON Semiconductor Corporation (ON) a "Buy" — based on 45 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, Diodes Incorporated (DIOD) is the cheapest at 78.

7x versus ON Semiconductor Corporation at 354. 1x. On forward P/E, ON Semiconductor Corporation is actually cheaper at 36. 1x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, ON Semiconductor Corporation (ON) delivered a total return of +173.

5%, compared to -61. 0% for Wolfspeed, Inc. (WOLF). Over 10 years, the gap is even starker: ON returned +1024% versus WOLF's +84. 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), ON Semiconductor Corporation (ON) is the lower-risk stock at 1.

95β versus Wolfspeed, Inc. 's 3. 11β — meaning WOLF is approximately 60% more volatile than ON relative to the S&P 500. On balance sheet safety, Diodes Incorporated (DIOD) carries a lower debt/equity ratio of 5% versus 45% for ON Semiconductor Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Diodes Incorporated (DIOD) is pulling ahead at 13.

0% versus -15. 3% for ON Semiconductor Corporation (ON). On earnings-per-share growth, the picture is similar: Diodes Incorporated grew EPS 50. 5% year-over-year, compared to -92. 0% for ON Semiconductor Corporation. Over a 3-year CAGR, WOLF leads at 9. 8% 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 -212. 4% for Wolfspeed, Inc. — meaning it keeps 5. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ON leads at 12. 5% versus -175. 4% for WOLF. 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.

On forward earnings alone, ON Semiconductor Corporation (ON) trades at 36.

1x forward P/E versus 59. 6x for Power Integrations, Inc. — 23. 4x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for POWI: 2. 5% to $79. 00.

In this comparison, POWI (1.

1% yield) pays a dividend. ON, DIOD, WOLF do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, ON Semiconductor Corporation (ON) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1024% 10Y return).

Wolfspeed, Inc. (WOLF) carries a higher beta of 3. 11 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ON: +1024%, WOLF: +84. 9%), 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 ON, DIOD, WOLF 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.