BELFB vs APH

For growth investors, Amphenol Corporation (APH) is the stronger pick with 51.

7% revenue growth year-over-year, versus 26. 3% for Bel Fuse Inc. (BELFB). Amphenol Corporation (APH) offers the better valuation at 41. 5x trailing P/E (29. 7x forward), making it the more compelling value choice. Analysts rate Bel Fuse Inc. (BELFB) a "Buy" — based on 7 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, Amphenol Corporation (APH) is the cheapest at 41.

5x versus Bel Fuse Inc. at 61. 8x. On forward P/E, Amphenol Corporation is actually cheaper at 29. 7x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Bel Fuse Inc. wins at 0. 96x versus Amphenol Corporation's 1. 07x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Bel Fuse Inc.

(BELFB) delivered a total return of +1573%, compared to +321. 4% for Amphenol Corporation (APH). Over 10 years, the gap is even starker: BELFB returned +1591% versus APH's +917. 7%. 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), Amphenol Corporation (APH) is the lower-risk stock at 1.

62β versus Bel Fuse Inc. 's 1. 88β — meaning BELFB is approximately 16% more volatile than APH relative to the S&P 500. On balance sheet safety, Bel Fuse Inc. (BELFB) carries a lower debt/equity ratio of 46% versus 115% for Amphenol Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Amphenol Corporation (APH) is pulling ahead at 51.

7% versus 26. 3% for Bel Fuse Inc. (BELFB). On earnings-per-share growth, the picture is similar: Amphenol Corporation grew EPS 74. 0% year-over-year, compared to 42. 3% for Bel Fuse Inc.. Over a 3-year CAGR, APH leads at 22. 3% 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.

Amphenol Corporation (APH) is the more profitable company, earning 18.

5% net margin versus 9. 1% for Bel Fuse Inc. — meaning it keeps 18. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: APH leads at 25. 9% versus 15. 9% for BELFB. At the gross margin level — before operating expenses — BELFB leads at 39. 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.

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, Bel Fuse Inc. (BELFB) is the more undervalued stock at a PEG of 0. 96x versus Amphenol Corporation's 1. 07x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Amphenol Corporation (APH) trades at 29. 7x forward P/E versus 36. 9x for Bel Fuse Inc. — 7. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for APH: 30. 2% to $180. 33.

In this comparison, APH (0.

5% yield) pays a dividend. BELFB does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Bel Fuse Inc.

(BELFB) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1591% 10Y return). Amphenol Corporation (APH) carries a higher beta of 1. 62 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (BELFB: +1591%, APH: +917. 7%), 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.