Is Kirby Corp. overvalued or undervalued?

As of 30 January 2025, Kirby Corp. has moved from an expensive to a very expensive valuation grade. The company is currently overvalued based on its financial metrics. The P/E ratio stands at 20, significantly higher than peers like Frontline Plc at 12.65 and Scorpio Tankers, Inc. at 7.57. Additionally, Kirby's EV to EBITDA ratio is 10.85, while Frontline and Scorpio show more attractive valuations at 8.61 and 7.05, respectively. The PEG ratio of 0.47 indicates that Kirby's growth prospects are not sufficient to justify its high valuation.
In comparison to the industry, Kirby Corp. exhibits a Price to Book Value of 2.07 and an EV to Sales ratio of 2.46, both of which suggest that the stock is priced at a premium relative to its peers. Despite a strong recent performance, with a 3-year return of 97.28% compared to the S&P 500's 58.74%, the current valuation metrics indicate that Kirby Corp. is not a compelling investment at this time.