Is Proto Labs, Inc. overvalued or undervalued?

Nov 23 2025 11:11 AM IST
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As of November 21, 2025, Proto Labs, Inc. is considered very expensive and overvalued, with a high P/E ratio of 44 and a PEG ratio of 4.96, significantly outpacing its peers and showing a concerning long-term performance decline despite a strong year-to-date return.
As of 21 November 2025, the valuation grade for Proto Labs, Inc. has moved from fair to very expensive, indicating that the company is overvalued. The key ratios supporting this conclusion include a P/E ratio of 44, an EV to EBITDA ratio of 13.93, and a PEG ratio of 4.96, all of which suggest that the stock is trading at a premium compared to its earnings growth potential.

In comparison to peers, Proto Labs has a significantly higher P/E ratio of 58.60 when compared to Ecovyst, Inc. at 18.34, and an EV to EBITDA ratio of 19.17, which further highlights its overvaluation. Despite a strong year-to-date return of 24.92% compared to the S&P 500's 12.26%, the long-term performance shows a concerning decline, with a 5-year return of -63.67% against the S&P 500's 85.61%. This disparity reinforces the notion that Proto Labs, Inc. is currently overvalued.
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