Why is there a big dip in duolingo stock last night

The stock price of Duolingo (DUOL) experienced a significant drop of -3.95% on July 21, 2025. This decline can be attributed to a combination of factors: 1. **Concerns over slowing user growth**: Duolingo's stock has been under pressure due to concerns about slowing user growth. This suggests that the market may be worried about the company's ability to sustain its current performance. 2. **Sustainability of marketing-driven expansion**: The market is also questioning the sustainability of Duolingo's marketing-driven expansion. This indicates that investors may be concerned about the company's long-term growth prospects if its current growth strategy is not sustainable. 3. **Insider selling**: The sale of shares by insiders, such as Robert Meese and Severin Hacker, could be a signal to investors about the confidence that insiders have in the company's future prospects. Insider selling can be a red flag for investors, as it may indicate that insiders have concerns about the company's future performance. In summary, the dip in Duolingo's stock price is likely a result of a combination of factors including concerns over slowing user growth, the sustainability of marketing-driven expansion, and insider selling. These factors could indicate deeper trouble ahead if not addressed by the company. |code|Ticker|Name|Date|Percentage Change|market_code| |---|---|---|---|---|---| |DUOL|DUOL.O|Duolingo|20250718|2.3594|185| |code|Ticker|Name|Date|Pre-Market Percentage Change|market_code| |---|---|---|---|---|---| |DUOL|DUOL.O|Duolingo|20250718|-0.6603|185| |code|Ticker|Name|Date|Post-Market Percentage Change|market_code| |---|---|---|---|---|---| |DUOL|DUOL.O|Duolingo|20250718|0.0567|185|