Is Amphenol Corp. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Amphenol Corp. has moved from expensive to attractive, indicating a shift in perception towards the stock's value. The company is currently considered undervalued, supported by a P/E ratio of 41, an EV to EBITDA ratio of 27.11, and a Price to Book Value of 10.98. In comparison to peers, Corning, Inc. is classified as very expensive with a P/E of 107.91 and an EV to EBITDA of 42.50, highlighting Amphenol's relative attractiveness in the market.
Additionally, Amphenol's strong performance is evident as it has outperformed the S&P 500 across multiple periods, with a year-to-date return of 80.92% compared to the S&P 500's 13.30%. This performance reinforces the notion that Amphenol is currently undervalued, particularly in light of its robust return on equity of 26.88% and return on capital employed of 23.22%.