13F Pro Quality Score

82.0/100

Rank #26 of 2,879 stocksTOP 1%

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Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

89.9/100

Profitability

94.3/100

Balance Sheet

97.1/100

Earnings Quality

97.1/100

Free Cash Flow

90.3/100

Institutional Flow

79.8/100

Revenue Scale

50.3/100

Dilution Risk

13.8/100

DUOL Stock Analysis & AI Quality Score

AI stock analysis and institutional research for Duolingo, Inc. (DUOL), a Technology sector company. 13F Pro's AI-powered ranking engine scores DUOL at 82.0/100 on a 32-signal composite quality model, placing it at rank #26 of 2,879 stocks — the top 1% of the AI-ranked universe. DUOL scores in the top quartile across balance sheet strength (97.1), earnings quality (97.1), profitability (94.3). Shareholder dilution risk is elevated at 13.8/100, reflecting ongoing share issuance or stock-based compensation. Based on the latest XBRL financial filings (Q1 2026), Duolingo, Inc. reports quarterly revenue of $292.0M, net income of $43.5M, an operating margin of 15.3%. Top institutional holders of DUOL by reported 13-F value include BAILLIE GIFFORD & CO, BlackRock,, VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. DUOL trades on the Nasdaq exchange and files with the SEC under CIK 1562088. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate DUOL daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for Duolingo, Inc. directly from SEC EDGAR. Duolingo, Inc.'s 13F Pro composite quality score has ranged between 8 and 83 since 2022, currently 82.0 — an improving long-term trajectory across 52 quarterly and live scoring snapshots.

Fun facts about Duolingo, Inc.

Quirks, history, and lore behind DUOL — the kind of stuff that makes a stock memorable.

  • 1
    The Basics
    U.S. technology company · mid-cap · listed on Nasdaq · headquartered in Pittsburgh, Pennsylvania.
  • 2
    The Numbers
    Annual revenue is roughly $500 million, it has over 500 million registered users, yet it only recently started turning a consistent profit — growth always came first.
  • 3
    The History
    Founded in 2011 by a Carnegie Mellon professor who also co-invented CAPTCHA, originally as a way to crowdsource translation while teaching people languages for free.
  • 4
    The Secret
    The free app is beloved, but the real money comes from a premium subscription tier and a suite of English proficiency tests used by universities worldwide.
  • 5
    The Lore
    Its green owl mascot became a full-blown internet meme — mock-threatening users to finish their daily lessons or face vague, increasingly unhinged consequences.
  • 6
    The Giveaway
    You've ignored its streak reminder notifications more than you'd like to admit — and somewhere, a passive-aggressive cartoon owl named Duo is judging you for it.
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What's Driving DUOL's Business? Latest 10-Q Breakdown

AI-extracted from Duolingo, Inc.'s 10-Q filed 2026-05-05 — Q1 2026 (quarter ended March 31, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

Duolingo Q1 2026 revenue surged 27% YoY to $292.0M, driven by 31% subscription growth to $250.9M with 56.5M DAUs, while adjusted EBITDA jumped 33% to $83.4M.

Biggest Revenue Drivers

Total revenue: $291.967M+27% YoY

Subscription$250.908M+31% YoY

Growth in average number of paid subscribers and increase in average revenue per user

Advertising$20.614M+15% YoY

Increase in DAUs and price per ad served

Duolingo English Test$11.317M-6% YoY
In-App Purchases$8.446M-11% YoY
Other$0.682M+53% YoY

Largest Expense Items

Research and development$82.974M+18% YoY

Net personnel costs and increased software and AI costs

Sales and marketing$39.249M+47% YoY

Increased direct marketing expenses

General and administrative$46.346M+7% YoY

Increased facilities and office expenses

Cost of revenues$78.871M+18% YoY

Offset by reductions in per-unit AI costs and improved feature efficiency

Margins: Gross margin expanded 190 bps to 73.0%, driven by subscription gross margin improvement from continued reductions in per-unit AI costs and improved feature efficiency. Operating leverage evident with operating income up 89% YoY despite 20% operating expense growth.

Watch Items from the Filing

  • Deferred revenue increased $17.1M QoQ to $513.3M, to be recognized over next 12 months, indicating strong subscription pipeline.
  • Company authorized $400M share repurchase program in February 2026; repurchased $25.8M (262K shares at $98.45 average) in Q1, leaving $374.2M capacity remaining.
  • Effective tax rate 21.8% in Q1 2026 vs. (0.4)% in Q1 2025, primarily due to discrete tax expense on stock-based compensation vs. prior year benefits.

AI-extracted and verified against SEC EDGAR filing text. Not investment advice.

Revenue

Q1 2026

$292.0M

Net Income

Q1 2026

$43.5M

Free Cash Flow

Q1 2026

$150.6M

Operating Margin

Q1 2026

15.3%

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+38.7% YoY
$1.04BFY 2025
FY22 $369.5MFY23 $531.1MFY24 $748.0MFY25 $1.04B

Net Income

+369.0% YoY
$414.1MFY 2025
FY22 $-59.6MFY23 $16.1MFY24 $88.3MFY25 $414.1M

Operating Income

+116.6% YoY
$135.6MFY 2025
FY22 $-65.2MFY23 $-13.3MFY24 $62.6MFY25 $135.6M

EPS (Diluted)

+355.9% YoY
$8.57FY 2025
FY22 $-1.51FY23 $0.35FY24 $1.88FY25 $8.57

Total Assets

+53.0% YoY
$1.99BFY 2025
FY22 $747.3MFY23 $954.0MFY24 $1.30BFY25 $1.99B

Op. Cash Flow

+35.8% YoY
$387.8MFY 2025
FY22 $53.7MFY23 $153.6MFY24 $285.5MFY25 $387.8M

AI Insight: DUOL Financial Trends

Duolingo sustained double-digit revenue growth with operating margin expansion to 15.4% in Q1 2026, while operating cash flow surged 61% year-over-year.

Revenue grew 26% YoY from $231M (Q1 2025) to $292M (Q1 2026), maintaining consistent double-digit quarterly growth.

Operating margin expanded to 15.4% in Q1 2026 from 10.4% in Q1 2025; operating income grew 88% YoY.

Operating cash flow reached $151M in Q1 2026, up 43% from $106M in Q1 2025, showing strong cash generation.

Q3 2025 net income of $292M appears anomalous relative to quarterly trend; investigate one-time gains or accounting items.

Equity grew 56% from $767M (Q2 2024) to $1,392M (Q1 2026); monitor if driven by retained earnings or capital raises.

AI Insight: DUOL Ratio Trends

Operating margin nearly doubled from Q2 2024 lows, reaching 15.2% in Q1 2026 on sustained profitability inflection.

Operating margin expanded from 10.5% in Q2 2024 to 15.2% in Q1 2026, with Q4 2025 peak of 15.4%.

ROIC improved from 9.8% in Q2 2024 to 12.8% in Q1 2026, with TTM ROIC at 11.2%.

NPM stabilized near 15% in recent quarters after Q3 2025 anomaly (107.5%), indicating normalized profitability.

Q3 2025 NPM spike to 107.5% and ROE/ROA surge to 89.4%/62.0% suggest one-time items; confirm sustainability.

ROE and ROA have moderated to 12.5% and 8.5% respectively in Q1 2026 from Q3 2025 peaks.

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Available Research

13F Pro tracks comprehensive data for Duolingo, Inc. including:

SEC EDGAR filings (10-K, 10-Q, 8-K)
XBRL financial facts (revenue, EPS, margins)
Insider transactions (Form 4)
Institutional 13F holdings
Quality rankings (32 signals)
AI analyst debates & daily meetings
Historical financial trends
Peer comparison & sector analysis

Top Institutional Holders of DUOL

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Is DUOL a good stock to buy?

13F Pro's AI-powered analysis of Duolingo, Inc. (DUOL) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for DUOL are available on the DUOL stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own DUOL?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling DUOL. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of Duolingo, Inc.'s investment landscape.