Is Amphenol Corp. overvalued or undervalued?

As of 31 October 2025, the valuation grade for Amphenol Corp. moved from very attractive to attractive. The company appears to be overvalued based on its current valuation metrics. The P/E ratio stands at 41, while the EV to EBITDA ratio is 27.11, and the Price to Book Value is 10.98. In comparison, Corning, Inc. is considered expensive with a P/E of 107.91 and an EV to EBITDA of 42.50, indicating that Amphenol is relatively better positioned within its peer group.
Despite the overvaluation, Amphenol has shown strong performance, with a year-to-date return of 96.83%, significantly outperforming the S&P 500's return of 16.30% over the same period. This strong performance may reflect investor confidence, but the high valuation ratios suggest caution for potential investors.