Is Entegris, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Entegris, Inc. has moved from fair to very expensive, indicating a significant shift in its perceived value. The company appears overvalued based on its current metrics. Key ratios include a P/E ratio of 38, an EV to EBITDA of 15.89, and a Price to Book Value of 2.95, all of which suggest that the stock is priced higher than its earnings and book value would typically justify.
When compared to peers, Entegris has a higher P/E ratio than IDEX Corp., which stands at 29.59, and a lower EV to EBITDA than its own ratio of 15.89, indicating that it is relatively more expensive. Additionally, the PEG ratio of 0.14 suggests that growth expectations are not being met by the current price. In terms of recent performance, Entegris has underperformed the S&P 500 over the 1-year and 5-year periods, with returns of -12.69% and 11.71%, respectively, compared to the S&P 500's 14.08% and 91.29%. This underperformance reinforces the notion that the stock may be overvalued.