Is Amphenol Corp. overvalued or undervalued?

As of 31 October 2025, the valuation grade for Amphenol Corp. moved from very attractive to attractive, indicating a shift in perceived value. The company appears to be overvalued based on its current metrics, with a P/E ratio of 41, a Price to Book Value of 10.98, and an EV to EBITDA ratio of 27.11. In comparison, Corning, Inc. is considered very expensive with a P/E of 107.91 and an EV to EBITDA of 42.50, highlighting that while Amphenol is relatively better positioned, it still carries a high valuation.
Despite the overvaluation, Amphenol has demonstrated strong performance with a year-to-date return of 100.63%, significantly outpacing the S&P 500's return of 16.30%. This performance, along with a robust ROCE of 23.22% and ROE of 26.88%, suggests that while the stock may be overvalued, it has been rewarding for investors in the short term.