Duolingo, Inc. Q2 2026 Filing Summary
Business Context and Reporting Period
This summary covers Duolingo, Inc.'s (NASDAQ: DUOL) Quarterly Report on Form 10-Q for the period ended June 30, 2026. Duolingo operates a freemium mobile learning platform offering over 250 language courses and the Duolingo English Test. The company reported 58.7 million Daily Active Users (DAUs) and 12.7 million paid subscribers as of the period end.
Key Financial Metrics
| Metric | Q2 2026 (3 Months) | Q2 2025 (3 Months) | YTD 2026 (6 Months) | YTD 2025 (6 Months) |
|---|---|---|---|---|
| Total Revenue | $298.5 million | $252.3 million | $590.4 million | $483.0 million |
| Gross Profit | $216.7 million | $182.6 million | $429.8 million | $346.7 million |
| Gross Margin | 72.6% | 72.4% | 72.8% | 71.8% |
| Net Income (GAAP) | $33.2 million | $44.8 million | $76.6 million | $79.9 million |
| Adjusted EBITDA | $77.3 million | $78.7 million | $160.7 million | $141.5 million |
| Free Cash Flow | $78.6 million | $86.3 million | $226.4 million | $189.3 million |
| Cash & Equivalents | $1.18 billion (as of June 30, 2026) |
Material Changes vs. Prior Period
- Revenue Growth: Revenue increased 18% year-over-year (YoY) in Q2 and 22% YoY for the six months ended June 30, 2026. Subscription revenue was the primary driver, growing 22% in Q2 and 27% YTD.
- Net Income Decline: Despite revenue growth, GAAP Net Income decreased 26% in Q2 ($33.2M vs $44.8M) and 4% YTD. This was primarily due to a significant increase in the provision for income taxes (effective rate rose from 3.6% to 26.9% in Q2) and higher operating expenses.
- Operating Expenses: Total operating expenses rose 23% in Q2. Research and Development (R&D) increased 25% due to headcount growth and higher AI costs. Sales and Marketing increased 35% driven by advertising spend.
- User Metrics: DAUs grew 23% to 58.7 million, and paid subscribers grew 17% to 12.7 million.
Guidance, Outlook, and Risks
- Capital Allocation: The Board authorized a $400 million share repurchase program in February 2026. The company repurchased approximately $70.3 million of stock in the first six months of 2026, with $329.7 million remaining available.
- Investment Focus: Management continues to invest heavily in R&D, specifically in artificial intelligence (AI) and machine learning technologies to enhance product capabilities and reduce per-unit AI costs.
- Risks: Key risks include competition in the online language learning industry, reliance on third-party platforms (Apple, Google, Stripe) for revenue processing, and the ability to maintain profitability while scaling. The filing notes that user metrics are self-calculated and not independently validated.
- Legal Contingencies: The company accrued approximately $5 million for proposed legal settlement charges in Q2 2026, which is not considered material to financial condition.
Investor Verification Checklist
- Tax Provision Volatility: Verify the sustainability of the effective tax rate, which jumped significantly from 3.6% in Q2 2025 to 26.9% in Q2 2026 due to discrete items related to stock-based compensation.
- AI Cost Efficiency: Monitor the trajectory of third-party AI costs within Cost of Revenues to ensure the reported reduction in per-unit costs continues to support gross margin expansion.
- Subscription Retention: Assess the quality of the 17% growth in paid subscribers to ensure it is not driven by short-term promotions that may impact future renewal rates.
- Share Repurchase Impact: Track the execution of the remaining $329.7 million repurchase authorization and its impact on diluted earnings per share.
- Platform Dependency: Review the concentration risk associated with Apple, Google, and Stripe, which processed approximately 95% of total revenues in Q2 2026.