Is United States Lime & Minerals, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for United States Lime & Minerals, Inc. has moved from very expensive to fair. Based on the current metrics, the company appears to be fairly valued. Key ratios include a P/E ratio of 26, an EV to EBITDA of 17.44, and a Price to Book Value of 5.91. In comparison to peers, Eagle Materials, Inc. has a P/E of 17.01, while Knife River Corp. stands at 29.41, indicating that United States Lime & Minerals is positioned competitively within its industry.
In terms of stock performance, United States Lime & Minerals has outperformed the S&P 500 over the past week and year, with returns of 10.31% and 27.03%, respectively, while the S&P 500 returned 1.70% and 14.08% in those periods. However, the company has lagged behind the S&P 500 on a year-to-date and multi-year basis, suggesting mixed performance relative to broader market trends.