Is Janus International Group, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Janus International Group, Inc. has moved from attractive to very expensive, indicating a significant shift in its perceived value. Based on the current metrics, the company appears overvalued, particularly when considering its P/E ratio of 21, which is notably lower than its peer average of approximately 29.65, and an EV to EBITDA ratio of 9.15 compared to peers like SPX Technologies, which has an EV to EBITDA of 25.04. Additionally, the Price to Book Value stands at 2.18, further suggesting that the stock may be priced too high relative to its book value.
In comparison to its peers, A. O. Smith Corp. has a P/E ratio of 26.10 and an EV to EBITDA of 17.71, while Tecnoglass, Inc. is valued more attractively with a P/E of 18.48 and an EV to EBITDA of 12.02. The recent stock performance shows that while Janus International Group has outperformed the S&P 500 in the year-to-date return at 33.88% versus 13.30%, it has lagged significantly over longer periods, with a 3-year return of 11.44% compared to the S&P 500's 81.19%. This discrepancy reinforces the notion that the stock may be overvalued in the current market context.