Is SiteOne Landscape Supply, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for SiteOne Landscape Supply, Inc. has moved from expensive to very expensive, indicating a significant deterioration in its valuation appeal. The company is currently considered overvalued, with a P/E ratio of 47, a Price to Book Value of 3.52, and an EV to EBITDA of 19.55. In comparison, peers such as CNH Industrial NV have a P/E of 19.42 and an EV to EBITDA of 10.28, highlighting the stark contrast in valuation metrics.
Additionally, the company's recent stock performance has been underwhelming, with a year-to-date return of -8.92%, significantly lagging behind the S&P 500's 13.30% return. This underperformance, coupled with its very expensive valuation, suggests that investors may want to exercise caution when considering SiteOne Landscape Supply, Inc. as an investment.