Duolingo, Inc.
DUOL · Price history
Price at last available close
$135.21
−$7.41 (-5.20%) 1M
2026-10-28
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Company & revenue
About Duolingo, Inc.
Primary reporting period: 2025-12-31 · Research updated Oct 12, 2026. A research update is not a new financial filing.
Who they are
Duolingo, Inc. builds and operates an online platform and a mobile application dedicated to language learning, catering to audiences in both the United States and China. The company's comprehensive curriculum spans 40 diverse languages, featuring prominent options such as Spanish, English, French, Japanese, German, Italian, Chinese, and Portuguese, among others. Furthermore, it offers a digital examination for assessing language proficiency.
How they make money
Duolingo operates a freemium business model where the platform is accessible free of charge, while revenue is generated through premium time-based subscriptions, in-app advertising placements, the Duolingo English Test, and in-app purchases of virtual goods.
Products & services
A mobile learning platform offering language courses, math, and music education, alongside a digital English language proficiency assessment exam.
Brands & revenue mix
Flagship mobile learning platform.
Separate brand revenue is not available in this research.Source
Digital English language proficiency assessment exam.
Separate brand revenue is not available in this research.Source
Revenue share is not unit sales or a best-seller ranking. Parent brands and included sub-brands can overlap; do not add overlapping rows.
Product / operating segments
No reconciled product or operating-segment revenue breakdown is available for the current research period. Company-wide revenue remains separate from segment disclosure.
Geographic revenue
Customer concentration
The company relies heavily on Apple and Google for the distribution of its mobile applications; a significant portion of revenue is processed through their respective payment systems.
Suppliers, materials & equipment
- Apple Inc. — Provides mobile application distribution services through the App Store.Source
- Google LLC — Provides mobile application distribution services through the Google Play Store.Source
- Cloud infrastructure providers — The company relies on third-party cloud computing services to host its platform and infrastructure.Source
Competitors
- Language learning platforms — Various digital and traditional language learning providers that compete for user time and subscription revenue.Source
Strengths
Wall Street Score
Overall investment score · Quality, value, risk and opportunity
65
Fair
View category scores →
Company Quality
How good is the actual business—regardless of today’s stock price?
76
Strong
Financial Strength
56
Business Quality / Moat
100
Management
100
Growth Quality
64
Risk / Durability
45
Uses financial strength, moat, management, growth quality and durability. It excludes share price, P/E, market cap, intrinsic value and margin of safety.
Opportunity
Opportunity Score · How does the current price compare with estimated value?
67
Fully Valued
Based on current valuation, company quality, recent trends, and available market signals.
View score details →
Model Outlook
12-month model · What does the model think happens next?
64/100
Building Historical Record
Model Score 64/100 — estimates relative performance potential, distinct from the overall Wall Street Score and the separate Company Quality score.
Probability unavailable — the model has not produced a calibrated probability yet.
Click for full breakdown →
WSS View
The quick read
The overall Wall Street Score is mixed across its combined quality, valuation and risk inputs. Review the category scores to identify what is helping or hurting the result.
At today’s price, the WSS valuation framework currently reads as moderate rather than unusually attractive.
The model outlook is currently moderate.
- •Valuation scores attractively
- •Debt / balance-sheet profile needs attention
Company-specific research
Questions worth answering for DUOL
These questions are generated from this company's current financial and score data so the page adds context instead of treating the headline score as a stand-alone conclusion.
- •Can DUOL maintain its current revenue growth rate and improve the amount of that revenue that turns into earnings and cash?
- •Is DUOL's positive free cash flow repeatable, or is the current level being helped by temporary working-capital or spending changes?
- •How is DUOL likely to use its cash advantage: reinvestment, acquisitions, debt reduction, dividends or buybacks?
- •Is DUOL's valuation discount tied to a temporary concern or to a longer-term business risk?
Essential Investment Snapshot
Wall Street Score
65
Opportunity Score
67
Market Cap
$6.30B
P/E Ratio
16.0
EPS
$8.90
52-Week High
$353.00
52-Week Low
$87.89
Beta
0.89
Intrinsic Value
$342.65
Analyst Target
$137.50
Shares Outstanding
48.3M
Total Revenue
$1.15B
Total Debt
$86.1M
Dividend
No current dividend
Liquidation Value / Share
$29.18
Momentum & Volatility Signals
Two different market-behavior signals. Momentum measures direction and trend strength. Volatility measures how large and unstable the price moves are, regardless of direction.
Weakening momentum
Normal movement
A high momentum score means price has been trending upward with confirming short- and medium-term strength. A low score means downward or weakening momentum.
A high volatility score means larger, less stable price swings. It can happen while a stock is rising or falling, so high volatility is not automatically bullish or bearish.
Important: the volatility score above is based on realized price volatility. Implied volatility (IV) comes from options prices and represents the market's expected future movement. Wall Street Score will keep IV separate and will only display it when a verified options-chain feed is available.
Community Sentiment
0 active · 0 total callsNo personal call yet on DUOL.
Potential upside factors
- +Growth opportunities may come from revenue expansion, margin improvement, new products, market-share gains, and stronger cash flow.
- +Strong brand recognition and large user base.
- +Advanced A/B testing and data analytics capabilities.
- +Positive free cash flow may provide capacity to invest in growth.
Potential downside factors
- −Key risks may include competition, margin pressure, debt levels, valuation risk, and changes in demand within the Software - Application industry.
- −Dependence on mobile app stores for distribution and payment processing.
- −Intense competition in the mobile learning and testing markets.
These research factors come from saved company research and financial data, not community votes. They are starting points to verify against filings, not buy or sell recommendations.
Create a free account to make a call.
Scores
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One click helps us improve the research experience. This is not tied to an investment decision.
Score Changes
6 historical score records availablePrevious Score
65
Sep 21, 2026
Change
+0.2
points
Current Score
65
Oct 1, 2026
Category Changes
DUOL increased 0.2 points because overall fundamentals improved.
Projected Score
Projected Score
62
Projected Change
-3.0 points
Preliminary comparable-period financial changes suggest decline of approximately 3.0 points. This is a projected estimate, not the official WallStreetScore.
Price vs. Value
UndervaluedCurrent Price
$135.21
Model Intrinsic Value
$342.65
Difference
−$207.44
-60.5% vs IV
Margin of Safety
60.5%
Financial Charts
Revenue
Additional Metrics
Operating Cash Flow
Total Debt
Total Assets
Net Margin %
Free includes 3 annual periods plus available TTM; Premium includes up to 10 annual periods. History depends on available company filings. Swipe the table horizontally to see older periods. A dash means unavailable, not zero.
| Line Item | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
| Revenue | $1.15B | $1.04B | $748.0M | $531.1M | ···· | ···· | ···· | ···· |
| Cost of Revenue | $316.7M | $293.9M | $209.2M | $147.2M | ···· | ···· | ···· | ···· |
| Gross Profit | $828.3M | $743.7M | $538.8M | $383.9M | ···· | ···· | ···· | ···· |
| Research & Development | $334.9M | $303.0M | $232.9M | $192.7M | ···· | ···· | ···· | ···· |
| SG&A Expenses | $331.1M | $299.5M | $242.3M | $204.1M | ···· | ···· | ···· | ···· |
| Operating Expenses | $666.0M | $602.5M | $475.3M | $396.9M | ···· | ···· | ···· | ···· |
| EBITDA | $206.7M | $196.8M | $113.2M | $24.9M | ···· | ···· | ···· | ···· |
| Operating Income | $162.3M | $141.2M | $63.6M | -$12.9M | ···· | ···· | ···· | ···· |
| Interest Expense | $0.00 | $0.00 | $0.00 | $0.00 | ···· | ···· | ···· | ···· |
| Income Before Tax | $201.9M | $182.4M | $102.3M | $17.8M | ···· | ···· | ···· | ···· |
| Income Tax Expense | -$208.9M | -$231.7M | $13.7M | $1.7M | ···· | ···· | ···· | ···· |
| Net Income | $410.8M | $414.1M | $88.6M | $16.1M | ···· | ···· | ···· | ···· |
| Basic EPS | $8.90 | $9.05 | $2.04 | $0.35 | ···· | ···· | ···· | ···· |
| Basic Shares | 46.70M | 45.77M | 43.50M | 46.52M | ···· | ···· | ···· | ···· |
| Diluted Shares | 50.03M | 48.31M | 47.10M | 46.52M | ···· | ···· | ···· | ···· |
Earnings Summary
Revenue
$298.5M
Estimate unavailable.
Revenue Beat/Miss
Not available (no estimate stored)
EPS
$0.66
Estimate unavailable.
EPS Beat/Miss
Not available (no estimate stored)
Debt Change
-11.0%
Cash Change
+21.0%
Margin Change
-6.6 pp
Debt and cash show percentage changes versus the comparison period; margin shows the change in percentage points (pp). These are company-wide changes, not per-share amounts.
Financial Changes Since Prior Period
What Improved
- Cash position grew
- Debt reduced
What Weakened
- Margins contracted
Potential Score Impact
Positive indicators included revenue growth, cash levels, debt levels. Pressure indicators included EPS growth, net income margin. These factors may support or pressure the Revenue, Management, Financial, and Debt categories; this summary does not claim that the stored scores changed.
Stored Earnings Analysis
Revenue increased 18.3%. EPS declined 27.5%. Cash increased 21.0%. Total debt declined 11.0%. Net income margin declined by 6.6 percentage points.
Earnings-Call Transcript
Earnings-call transcript analysis is not currently available.
These results may influence future scores when the next evaluation is completed.
Insider Activity
Guru / Smart Money
Guru Score
Smart Money
Number of Gurus
Total Guru Value
Avg Portfolio Weight
Largest Holder
Largest Holder %
New Positions
Increased Positions
Reduced Positions
Exited Positions
Net Guru Sentiment
Short Interest
Dividend History
Dividend data is not available yet. Missing data does not mean this company pays no dividend.
Conservative Projected Values
3 Years
$———.——
5 Years
$———.——
10 Years
$———.——
Conservative Projection Rate
——%
Conservative Projected Values — price projections derived from actual 10-year adjusted historical returns, conservatively adjusted and capped at 8% annually. These are distinct from the Outperformance Model Score and WallStreetScore.
Conservative Projected Values
Premium unlocks the 3-year, 5-year, and 10-year conservative projected values with full calculation breakdowns based on actual historical returns.
Start 7-Day Free TrialHistorical Outperformance Record
Premium includes stored forecasts and any available evaluated results. Completed results, win rates and calibrated probabilities are shown only when supported records exist; access does not create historical outcomes.
Start 7-Day Free TrialHistorical Trends
6 historical recordsHistorical Score Chart
3 of 6 records shownWall Street Score
Debt Score
Revenue Score
Asset Score
Capital Score
Management Score
Moat Score
Valuation Score
Buffett Score
Intrinsic Value
Value Reference
Margin of Safety %
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Rumor Mill · DUOL
Corporate developments & opportunities
No reviewed developments match this filter.
Evidence credibility is not a forecast of stock performance. Rumor Mill is separate from the WSS score.
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