Duolingo just closed out 2025 with a quarter that would make most edtech companies jealous — $282.9M in revenue (+35% YoY), 52.7 million daily active users, and over $1 billion in bookings for the first time ever. So why did the stock plunge 21% the next day?
Two words: growth pivot.
The Revenue Machine Keeps Humming
The numbers speak for themselves:
Revenue: $282.9M (+35.0% YoY), beating estimates of $281.5M
EPS: $0.91 (+193% YoY), crushing the $0.84 consensus
Operating income: $43.5M (+213% YoY)
Gross profit: $205.9M (+36.7% YoY)
Duolingo has now posted 8 consecutive quarters of accelerating revenue, growing from $167.6M in Q1 2024 to $282.9M in Q4 2025. Full-year 2025 revenue crossed the $1 billion mark.
50 Million People Open This App Every Day
The real story isn't revenue — it's the user flywheel. Duolingo ended Q4 with 52.7 million daily active users, up 30% YoY and a staggering 5x increase since the 2021 IPO.
DAU: 52.7M (+30% YoY)
MAU: 133.1M (+14% YoY)
Paid subscribers: 12.2M
And the platform is expanding fast. Chess — launched just a year ago — already has 7 million DAUs. Math and music are next.
Beat the Street, But Guided Down
Duolingo beat on both the top and bottom line. Revenue topped estimates by $1.4M. EPS beat by $0.07. Operating income more than tripled. But Wall Street doesn't trade the past — it trades the future.
The 2026 Pivot: More Users, Less Profit (For Now)
CEO Luis von Ahn announced Duolingo is deliberately slowing near-term monetization to accelerate user growth:
Revenue: $1.20-1.22B (+14-16% YoY) vs. $1.26B consensus
Bookings: $1.27-1.30B (+8-10% YoY) vs. $1.39B consensus
Adj. EBITDA margin: ~25%, down from 29.5% in 2025
The strategy? Make AI features like "Video Call with Lily" and "Speaking Adventures" free for everyone. AI costs have dropped 10x since launch. The target: 100 million DAUs by 2028.
"If we're seeing faster user growth than we're expecting, and what we are expecting is about 20%, then that means the strategy is working." — Luis von Ahn
So Why Did the Stock Drop 21%?
Bookings guidance miss was massive. $1.27-1.30B vs $1.39B consensus is a $100M gap.
Margin compression is real. EBITDA margins going from 29.5% to 25%.
"Invest now, monetize later" scares people. Right long-term play, but markets hate uncertainty.
The $400M buyback signals management confidence, but it wasn't enough to offset the guidance shock.
The Bottom Line
Duolingo delivered an excellent Q4 by every backward-looking metric. The 21% selloff is entirely about the forward outlook — and whether you trust management's bet that giving away AI features today will build a much larger, stickier user base tomorrow.
With 52.7M DAUs, chess hitting 7M users in year one, and AI costs plummeting, the building blocks are there. The question is whether Wall Street has the patience to wait.
Until next time,
Wisdom of the Whales