Is AerCap Holdings NV overvalued or undervalued?

As of 17 October 2025, the valuation grade for AerCap Holdings NV has moved from fair to expensive, indicating that the stock is currently overvalued. Key valuation ratios include a P/E ratio of 11, an EV to EBITDA of 10.15, and a Price to Book Value of 1.24. In comparison to peers, SoFi Technologies, Inc. has a significantly higher P/E of 54.79, while Synchrony Financial is considered very attractive with a P/E of 15.06.
Despite AerCap's strong performance with a year-to-date return of 25.84% compared to the S&P 500's 13.30%, the elevated valuation metrics suggest that the stock may not provide sufficient upside potential at its current price.