Is Saia, Inc. overvalued or undervalued?

As of 19 September 2025, the valuation grade for Saia, Inc. has moved from fair to expensive. The company appears to be overvalued based on its current metrics. Key ratios include a P/E ratio of 21, an EV to EBITDA of 10.21, and a Price to Book Value of 2.85. In comparison, J.B. Hunt Transport Services, Inc. has a significantly higher P/E of 40.85, while Knight-Swift Transportation Holdings, Inc. is at a fair valuation with a P/E of 45.62.
Recent stock performance shows that Saia, Inc. has underperformed relative to the S&P 500, with a year-to-date return of -31.97% compared to the index's 13.31%. This underperformance, combined with its elevated valuation ratios, reinforces the conclusion that Saia, Inc. is currently overvalued.