Is APi Group Corp. overvalued or undervalued?

As of 31 October 2025, the valuation grade for APi Group Corp. moved from expensive to very expensive, indicating a significant increase in perceived overvaluation. The company is overvalued based on its current metrics, with a P/E ratio of 64, a Price to Book Value of 4.59, and an EV to EBITDA of 33.63, all of which are considerably higher than industry averages.
In comparison to its peers, APi Group Corp. has a notably high P/E ratio of 87.46, while EMCOR Group, Inc. and Comfort Systems USA, Inc. have P/E ratios of 29.12 and 38.72, respectively, suggesting that APi is trading at a premium relative to its competitors. Additionally, despite its strong recent performance, with a year-to-date return of 47.75% compared to the S&P 500's 16.30%, the high valuation ratios indicate that the stock may not be sustainable at these levels.