APH vs BDC

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

7% revenue growth year-over-year, versus 10. 3% for Belden Inc. (BDC). Belden Inc. (BDC) offers the better valuation at 19. 4x trailing P/E (14. 5x forward), making it the more compelling value choice. Analysts rate Amphenol Corporation (APH) a "Buy" — based on 29 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, Belden Inc.

(BDC) is the cheapest at 19. 4x versus Amphenol Corporation at 41. 5x. On forward P/E, Belden Inc. is actually cheaper at 14. 5x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Belden Inc. wins at 0. 39x versus Amphenol Corporation's 1. 07x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Amphenol Corporation (APH) delivered a total return of +321.

4%, compared to +128. 3% for Belden Inc. (BDC). Over 10 years, the gap is even starker: APH returned +917. 7% versus BDC's +88. 3%. 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), Belden Inc.

(BDC) is the lower-risk stock at 1. 41β versus Amphenol Corporation's 1. 62β — meaning APH is approximately 15% more volatile than BDC relative to the S&P 500. On balance sheet safety, Amphenol Corporation (APH) carries a lower debt/equity ratio of 115% versus 117% for Belden Inc. — giving it more financial flexibility in a downturn.

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

7% versus 10. 3% for Belden Inc. (BDC). On earnings-per-share growth, the picture is similar: Amphenol Corporation grew EPS 74. 0% year-over-year, compared to 23. 1% for Belden 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 8. 7% for Belden 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 12. 2% for BDC. At the gross margin level — before operating expenses — APH leads at 36. 9%, 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, Belden Inc. (BDC) is the more undervalued stock at a PEG of 0. 39x versus Amphenol Corporation's 1. 07x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Belden Inc. (BDC) trades at 14. 5x forward P/E versus 29. 7x for Amphenol Corporation — 15. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BDC: 30. 8% to $150. 00.

All stocks in this comparison pay dividends.

Amphenol Corporation (APH) offers the highest yield at 0. 5%, versus 0. 2% for Belden Inc. (BDC).

For long-horizon retirement investors, Amphenol Corporation (APH) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+917.

7% 10Y return). Both have compounded well over 10 years (APH: +917. 7%, BDC: +88. 3%), 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.

In terms of investment character: APH is a mid-cap high-growth stock; BDC is a small-cap quality compounder stock. 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.