Is Owens Corning overvalued or undervalued?

As of 17 October 2025, the valuation grade for Owens Corning has moved from expensive to fair. Based on the current metrics, the company appears to be fairly valued. Key ratios include a P/E ratio of 13, an EV to EBITDA of 7.82, and a Price to Book Value of 3.30. In comparison to peers, Owens Corning's P/E ratio of 15.01 is lower than that of Ball Corp. at 38.35 and Avery Dennison Corp. at 28.96, indicating a more attractive valuation relative to these competitors.
Despite the fair valuation, Owens Corning has underperformed against the S&P 500, with a year-to-date return of -25.46% compared to the index's 13.30%. This performance trend, coupled with its current valuation metrics, suggests that while the stock is fairly valued, its recent returns may raise concerns for potential investors.