Is HEICO Corp. overvalued or undervalued?

As of 12 September 2025, HEICO Corp. has moved from an expensive to a fair valuation grade. The company appears fairly valued based on its current metrics. Key ratios include a P/E ratio of 55, an EV to EBITDA of 34.64, and a PEG ratio of 1.58. In comparison, Teledyne Technologies, Inc. has a P/E of 29.71, while Leidos Holdings, Inc. shows a more attractive P/E of 16.13, indicating that HEICO's valuation is higher than some peers in the Aerospace & Defense sector.
Over the past year, HEICO has returned 24.31%, outperforming the S&P 500's return of 17.14%, which supports the notion that the stock is performing well relative to the broader market.