Is Littelfuse, Inc. overvalued or undervalued?

As of 30 June 2025, Littelfuse, Inc. has moved from an expensive to a very expensive valuation grade. The company appears overvalued based on its current metrics, including a P/E ratio of 26, an EV to EBITDA of 13.74, and a Price to Book Value of 2.34. In comparison to peers, Littelfuse's P/E ratio of 30.08 is higher than Universal Display Corp.'s 28.20 and significantly above Veeco Instruments, Inc.'s 16.65, indicating a premium valuation relative to its industry.
In terms of recent performance, Littelfuse's stock has underperformed against the S&P 500 over the 1-year, 3-year, and 5-year periods, with returns of 5.35%, 25.90%, and 50.82%, respectively, compared to the S&P 500's 17.14%, 70.41%, and 96.61%. This trend reinforces the notion that the stock may be overvalued given its lackluster performance relative to the broader market.