Duolingo stock skyrockets 30% on boosted guidance as AI powers user growth

Core Insights - Duolingo's shares increased by over 30% following an upward revision of its guidance due to strong user growth driven by artificial intelligence [1] - The company raised its full-year revenue guidance to between $1.01 billion and $1.02 billion, up from a previous range of $987 million to $996 million [1] - Duolingo also increased its bookings guidance to between $1.15 billion and $1.16 billion [1] User Growth and Profitability - The company reported a 40% increase in daily active users, reaching nearly 48 million compared to about 34 million in the same period last year [2] - Co-founder and CEO Luis von Ahn stated that the company exceeded its own high expectations for bookings and revenue while also expanding profitability [2]