Is Martin Marietta Materials, Inc. overvalued or undervalued?

As of 30 April 2025, the valuation grade for Martin Marietta Materials, Inc. has moved from expensive to very expensive, indicating a significant shift in its market perception. The company is currently considered overvalued. Key ratios include a P/E ratio of 30, an EV to EBITDA of 18.39, and a Price to Book Value of 3.66, which are all elevated compared to industry norms.
In comparison with peers, Vulcan Materials Co. has a P/E of 33.34 and an EV to EBITDA of 17.58, suggesting that while both companies are viewed as very expensive, Martin Marietta's ratios still reflect a premium. The company's recent stock performance shows a 1-week return of 1.69%, outperforming the S&P 500's slight decline, but its longer-term returns have lagged behind the index, reinforcing the notion of overvaluation.