LFUS vs ON vs STM vs DIOD

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 77. 9x trailing P/E (42. 6x forward), making it the more compelling value choice. Analysts rate Littelfuse, Inc. (LFUS) a "Buy" — based on 12 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 77.

9x versus ON Semiconductor Corporation at 355. 9x. On forward P/E, Littelfuse, Inc. is actually cheaper at 31. 6x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, ON Semiconductor Corporation (ON) delivered a total return of +178.

8%, compared to +57. 4% for Diodes Incorporated (DIOD). Over 10 years, the gap is even starker: STM returned +1042% versus LFUS's +331. 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), Littelfuse, Inc.

(LFUS) is the lower-risk stock at 1. 77β versus Diodes Incorporated's 2. 08β — meaning DIOD is approximately 18% more volatile than LFUS 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 -172. 5% for Littelfuse, Inc.. Over a 3-year CAGR, LFUS leads at -1. 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.

Diodes Incorporated (DIOD) is the more profitable company, earning 4.

5% net margin versus -3. 0% for Littelfuse, Inc. — meaning it keeps 4. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ON leads at 12. 5% versus 1. 6% for LFUS. At the gross margin level — before operating expenses — LFUS leads at 38. 0%, 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, Littelfuse, Inc.

(LFUS) trades at 31. 6x forward P/E versus 49. 8x for STMicroelectronics N. V. — 18. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for DIOD: 7. 7% to $120. 00.

In this comparison, LFUS (0.

6% yield), STM (0. 6% yield) pay a dividend. ON, DIOD do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, STMicroelectronics N.

V. (STM) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (0. 6% yield, +1042% 10Y return). Diodes Incorporated (DIOD) carries a higher beta of 2. 08 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (STM: +1042%, DIOD: +484. 5%), 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.

LFUS, STM pay a dividend while ON, DIOD 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.