Is Kirby Corp. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Kirby Corp. moved from attractive to very expensive, indicating a shift towards overvaluation. The company appears overvalued based on key ratios, including a P/E ratio of 20, an EV to EBITDA of 10.85, and a Price to Book Value of 2.07. In comparison to peers, Frontline Plc has a higher P/E of 21.44, while Matson, Inc. shows a much lower P/E of 6.73, highlighting Kirby's relative overvaluation in the transport services sector.
Despite recent strong short-term performance, with a 1-week return of 7.02% compared to the S&P 500's 1.70%, Kirby Corp. has underperformed over longer periods, with a year-to-date return of -19.13% against the S&P 500's 13.30%. This suggests that while the stock may have had a brief rally, its overall valuation does not support sustained growth, reinforcing the conclusion that Kirby Corp. is overvalued.