Duolingo, Inc.

(NASDAQ Global Select)
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Very Bearish -75

Deadline Alert: Duolingo, Inc. Investors Have Until December 7, 2026 to ...

Class action AI-generated analysis

πŸ“‰ Duolingo, Inc. stock fell $66.28 (25.49%) to close at $193.74 on November 6, 2025, following the disclosure of slowing Daily Active User growth in Q3 2025.

πŸ“‰ Duolingo, Inc. stock dropped an additional $14.92 (8.45%) to close at $161.74 on January 12, 2026, after announcing the CFO's resignation and weak Q4 2025 user metrics.

πŸ“‰ Duolingo, Inc. share price plummeted $16.45 (14.01%) to close at $101 on February 27, 2026, after Q4 earnings confirmed that monetization strategies were materially harming bookings and revenue.

βš–οΈ A securities fraud class action lawsuit was filed against Duolingo, Inc. alleging false statements about user growth and product quality during the period from May 2, 2025, to February 26, 2026.

πŸ“… Investors have until December 7, 2026, to file a motion with the U.S. District Court in Pittsburgh to be appointed as lead plaintiff in the case.

⚠️ The lawsuit alleges Duolingo failed to disclose that increased ad volume and subscription upsells created user friction that negatively impacted Daily Active User growth rates.

πŸ€– The complaint asserts that Duolingo's use of quickly generated AI content worsened product quality, negatively impacting the user experience and threatening financial sustainability.

πŸ“‰ Internal A/B testing allegedly demonstrated to Duolingo executives that their monetization push and lower-quality content were degrading the value proposition of subscription tiers.

Risk Factors
  • Duolingo, Inc. disclosed a consecutive decline in Daily Active User growth rates, falling from 49% in Q1 2025 to 36% in Q3 2025 and 30% in Q4 2025.
  • The company admitted that its strategic shift to prioritize monetization over user growth is materially harming 2026 bookings, daily active user growth rates, revenue, and adjusted EBITDA.
  • Duolingo, Inc. stock price collapsed from a high of $193.74 to $101 between November 2025 and February 2026 due to negative earnings surprises and executive departures.
  • The CFO, Matthew Skaruppa, resigned on January 12, 2026, coinciding with the release of preliminary Q4 2025 operating metrics showing a further slowdown in user growth.
  • A securities fraud lawsuit alleges Duolingo failed to disclose that deliberately added user friction, such as increased ad volume and upsells, was causing users to leave the app.
  • The complaint claims Duolingo's internal testing proved that increased friction and rapidly generated AI content were degrading product quality and negatively impacting user trends.
Full Analysis
Duolingo, Inc. (NASDAQ: DUOL) investors have until December 7, 2026 to request appointment as lead plaintiff in a securities fraud class action lawsuit filed on October 7, 2026. The case, City of Dearborn Heights Act 345 Police & Fire Retirement System v. Duolingo, Inc., alleges that the company made materially false or misleading statements regarding its business operations and prospects between May 2, 2025, and February 26, 2026. The lawsuit centers on a period of declining performance where Duolingo disclosed slowing Daily Active User (DAU) growth rates across three consecutive quarters. Following the announcement of Q3 2025 results showing DAU growth falling to 36%, the stock price dropped significantly. Subsequent disclosures regarding the CFO's resignation and weak Q4 2025 metrics further depressed the share price, culminating in a sharp decline after Q4 earnings confirmed that strategic shifts toward monetization were materially harming bookings, revenue, and adjusted EBITDA. The complaint alleges that defendants failed to disclose that DAU growth was being leveraged against deliberately added user friction, including increased ad volume and subscription upsells. It further claims that internal A/B testing demonstrated that these friction tactics and the use of quickly generated AI content were degrading product quality and negatively impacting user trends, thereby threatening the sustainability of Duolingo's financial performance while misleading investors about the company's prospects.