Is Post Holdings, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Post Holdings, Inc. has moved from fair to attractive, indicating a shift in perception regarding its value. The company appears undervalued based on its current metrics, with a P/E ratio of 22, an EV to EBITDA of 11.35, and a Price to Book Value of 2.22. In comparison to peers, The J. M. Smucker Co. has a higher P/E of 23.79, while Conagra Brands, Inc. shows a much lower P/E of 8.91, highlighting Post's relative attractiveness in the market.
Despite recent underperformance, with a year-to-date return of -7.55% compared to the S&P 500's 13.30%, the long-term outlook remains positive, as evidenced by a 5-year return of 73.60%. This suggests that while the stock may be facing short-term challenges, its valuation metrics indicate it could be a compelling investment opportunity moving forward.