Is TriMas Corp. overvalued or undervalued?

As of 17 October 2025, TriMas Corp. has moved from fair to very expensive in valuation grade. The company appears overvalued based on its current metrics, with a P/E ratio of 40, an EV to EBITDA of 12.16, and a Price to Book Value of 1.54. In comparison, Advanced Drainage Systems, Inc. has a P/E of 27.44 and an EV to EBITDA of 15.19, while Brady Corp. shows a P/E of 21.28 and an EV to EBITDA of 14.28, indicating that TriMas Corp. is trading at a premium relative to its peers.
Despite a strong year-to-date return of 50.02% compared to the S&P 500's 13.30%, the long-term performance shows a decline, with a 5-year return of 47.09% versus the S&P 500's 91.29%. This disparity in performance, combined with the high valuation ratios, reinforces the conclusion that TriMas Corp. is currently overvalued.