Is Penumbra, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Penumbra, Inc. has moved from very expensive to expensive, indicating a slight improvement in perceived value but still suggesting overvaluation. The company is considered overvalued based on its high valuation ratios, including a P/E ratio of 84, an EV to EBITDA of 69.41, and a PEG ratio of 6.49. In comparison, Hologic, Inc. has a more reasonable P/E of 21.83, while The Cooper Cos., Inc. shows an EV to EBITDA of 14.70, highlighting the significant disparity in valuation metrics.
Despite a 1-year return of 23.11%, which outperformed the S&P 500's 14.08%, the longer-term performance reveals a concerning trend, with a 5-year return of only 16.36% compared to the S&P 500's 91.29%. This suggests that while Penumbra may have had some recent success, its high valuation ratios and underperformance relative to the broader market over longer periods indicate that it remains overvalued.