Is Corning, Inc. overvalued or undervalued?

As of 7 November 2025, the valuation grade for Corning, Inc. has moved from expensive to fair. The company appears to be fairly valued at this time. Key valuation ratios include a P/E ratio of 94, a Price to Book Value of 8.61, and an EV to EBITDA of 33.00. In comparison, Amphenol Corp. has a more attractive P/E ratio of 41.01 and an EV to EBITDA of 27.33, highlighting Corning's relative valuation challenges within the industry.
Despite this, Corning has shown strong performance, with a year-to-date return of 79.88%, significantly outperforming the S&P 500's return of 14.40% over the same period. However, over the longer term, the 10-year return of 146.27% for Corning trails behind the S&P 500's 220.54%, suggesting potential concerns about future growth.