Key Takeaways Duolingo's P/E of 33.18 exceeds the industry's 22.08, but its PEG of 0.71 signals strong growth support.DUOL leverages an AI-first model, driving scale, a 72.8% gross margin and more than 50M daily active users.Margin expansion continued, with the EBITDA margin up 490 bps in Q4'25 and 380 bps for the year.Duolingo (DUOL) has a forward price-to-earnings (P/E) ratio of 33.18, which is significantly higher than the industry average of 22.08, indicating overvaluation. However, its P/E-to-growth (P ...