Is Saia, Inc. overvalued or undervalued?

As of 10 September 2025, the valuation grade for Saia, Inc. has moved from fair to expensive, indicating a shift towards overvaluation. The company appears overvalued based on its current metrics, with a P/E ratio of 21, a Price to Book Value of 2.85, and an EV to EBITDA of 10.21. In comparison to peers, Saia, Inc. has a higher P/E ratio than J.B. Hunt Transport Services, Inc. at 40.85 and Knight-Swift Transportation Holdings, Inc. at 45.62, suggesting that it is trading at a premium relative to its competitors.
Additionally, while Saia, Inc. has experienced a significant decline in stock performance year-to-date, with a return of -30.92% compared to the S&P 500's 12.22%, it has outperformed the index over the 3-year and 5-year periods. However, the current valuation metrics and the recent downgrade in grade suggest that investors should exercise caution.