What is the 13F Pro Quality Score for DUOL?

13F Pro ranks Duolingo, Inc. (DUOL) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View DUOL's current score at https://13fpro.ai/company/DUOL (free sign-up required for the full ranking).

Which hedge funds own the most DUOL stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of DUOL include BAILLIE GIFFORD & CO, BlackRock,, AQR CAPITAL MANAGEMENT. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/company/DUOL as soon as new 13F filings post.

Where does 13F Pro source DUOL data?

All Duolingo, Inc. fundamentals and ownership data come directly from SEC EDGAR. Duolingo, Inc. files with the SEC under CIK 1562088. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is DUOL in?

Duolingo, Inc. (DUOL) is classified in the Technology sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/technology.

What drives DUOL's revenue?

Per Duolingo, Inc.'s latest 10-Q filed with the SEC on 2026-08-06, the biggest revenue drivers are: Subscription ($258.0M, +22% YoY); Advertising ($21.1M, +2% YoY); Duolingo English Test ($10.1M, 0% YoY). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/company/DUOL.

What are DUOL's largest expenses?

Duolingo, Inc.'s latest 10-Q reports these as the largest expense items: Research and development ($92.2M, +25% YoY); Cost of revenues ($81.7M, +17% YoY); General and administrative ($50.6M, +10% YoY). Sourced directly from SEC EDGAR filing text for Q2 FY2026 (quarter ended June 30, 2026).

How often is DUOL research updated on 13F Pro?

DUOL's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

Duolingo, Inc.(DUOL)Stock Analysis

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SEC EDGAR: CIK 1562088 DUOL stock profile & AI dashboard →

13F Pro Quality Score

74.5/100

Rank #111 of 2,961 stocksTOP 5%

View Technology peers →

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

Revenue Growth

90.3/100

Profitability

95.7/100

Balance Sheet

97.1/100

Earnings Quality

41.4/100

Free Cash Flow

88.4/100

Institutional Flow

30.1/100

Revenue Scale

52.4/100

Dilution Risk

13.3/100

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Why DUOL Scores 75/100

exact factor attribution · 2026-09-11

DUOL's composite is driven by revenue growth and profitability, held back by shareholder dilution. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Revenue growth

+8.1 pts

90th pct

Profitability

+6.9 pts

96th pct

Free cash flow

+5.8 pts

88th pct

Capital efficiency

+4.7 pts

97th pct

Earnings growth

+2.4 pts

98th pct

Scale

+0.4 pts

52th pct

Earnings quality

-0.9 pts

41th pct

Institutional flow

-1.0 pts

30th pct

Shareholder dilution

-1.8 pts

13th pct

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

DUOL Stock Analysis & AI Quality Score

Data updated 2026-09-11

AI stock analysis and institutional research for Duolingo, Inc. (DUOL), a Technology sector company. 13F Pro's AI-powered ranking engine scores DUOL at 74.5/100 on a 32-signal composite quality model, placing it at rank #111 of 2,961 stocks — the top 5% of the AI-ranked universe. DUOL scores in the top quartile across balance sheet strength (97.1), profitability (95.7), revenue growth (90.3). Areas of concern include institutional flow (30.1), which score below median versus the broader universe. Shareholder dilution risk is elevated at 13.3/100, reflecting ongoing share issuance or stock-based compensation. Based on the latest XBRL financial filings (Q2 2026), Duolingo, Inc. reports quarterly revenue of $298.5M, net income of $33.2M, an operating margin of 11.4%. Top institutional holders of DUOL by reported 13-F value include BAILLIE GIFFORD, BlackRock, AQR 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 39 and 83 since 2022, currently 74.5 — an improving long-term trajectory across 63 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

✓ 42/42 datapoints verified

AI-extracted from Duolingo, Inc.'s 10-Q filed 2026-08-06 — Q2 FY2026 (quarter ended June 30, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

Revenue rose 18% to $298.5M on 22% subscription growth, but net income fell 26% to $33.2M as the effective tax rate jumped to 26.9%.

Biggest Revenue Drivers

Subscription$258.0M+22% YoY

Growth in the average number of paid subscribers and, to a lesser extent, an increase in average revenue per user

Advertising$21.1M+2% YoY

Biggest Revenue Drivers

Total revenue: $298.5M+18% YoY

Subscription$258.0M+22% YoY

Growth in the average number of paid subscribers and, to a lesser extent, an increase in average revenue per user

Advertising$21.1M+2% YoY

Duolingo English Test$10.1M0% YoY

In-App Purchases$8.0M-23% YoY

Decreased IAP revenue drove the 3% decline in total other revenue for the quarter

Other$1.3M+>100% YoY

Largest Expense Items

Research and development$92.2M+25% YoY

Higher net personnel costs of $13.8M from headcount growth, including $5.0M more stock-based compensation, plus $3.3M higher software and third-party AI costs

Cost of revenues$81.7M+17% YoY

Predominantly third-party payment processing fees, hosting fees and third-party AI costs

General and administrative$50.6M+10% YoY

Higher legal and accounting fees of $5.4M and facilities costs of $1.2M, partly offset by a $3.7M personnel cost decrease

Sales and marketing$40.0M+35% YoY

Mainly increased advertising costs of $8.6M

Margins: Gross margin edged up to 72.6% from 72.4%, attributable to higher subscription gross margin reflecting continued reductions in per-unit third-party AI costs. Operating margin fell to 11% from 13% as opex outgrew revenue.

Watch Items from the Filing

Total bookings grew only 8% to $289.1M and subscription bookings 10% to $250.3M, well below reported revenue growth of 18%.
Three payment processors, Apple, Google and Stripe, processed 59.6%, 23.2% and 11.9% of total revenues, and hold 65.5%, 15.7% and 11.7% of accounts receivable.
Effective tax rate rose to 26.9% from 3.6%, cutting net income to $33.2M from $44.8M; Adjusted EBITDA also slipped to $77.3M from $78.7M.
Company accrued approximately $5 million for proposed legal settlement charges, with the remainder of the obligation expected to be funded by insurance.
DAUs rose 23% to 58.7 million and paid subscribers 17% to 12.7 million; $329.7M remains under the $400M February 2026 repurchase authorization.

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

Read the full 10-Q on SEC EDGAR →Share on X

Revenue

Q2 2026

$298.5M

Net Income

Q2 2026

$33.2M

Free Cash Flow

Q2 2026

$81.4M

Operating Margin

Q2 2026

11.4%

ROIC

Q2 2026

9.6%

Period

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

+367.5% YoY

$414.1MFY 2025

FY22 $-59.6MFY23 $16.1MFY24 $88.6MFY25 $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

Free Cash Flow

+35.2% YoY

$369.7MFY 2025

FY22 $48.1MFY23 $150.4MFY24 $273.4MFY25 $369.7M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$1.04B +38.7%	$748.0M +40.8%	$531.1M +43.7%	$369.5M +47.3%	$250.8M +55.1%	$161.7M
Net Income	$414.1M +367.5%	$88.6M +451.3%	$16.1M +127.0%	$-59.6M +0.9%	$-60.1M -281.2%	$-15.8M
Operating Income	$135.6M +116.6%	$62.6M +572.1%	$-13.3M +79.7%	$-65.2M -8.6%	$-60.0M -274.8%	$-16.0M
EPS (Diluted)	$8.57 +355.9%	$1.88 +437.1%	$0.35 +123.2%	$-1.51 +41.2%	$-2.57 -107.3%	$-1.24
Total Assets	$1.99B +53.0%	$1.30B +36.5%	$954.0M +27.6%	$747.3M +13.0%	$661.3M +276.3%	$175.7M
Operating Cash Flow	$387.8M +35.8%	$285.5M +85.9%	$153.6M +186.3%	$53.7M +485.1%	$9.2M -48.2%	$17.7M
Free Cash Flow	$369.7M +35.2%	$273.4M +81.8%	$150.4M +212.8%	$48.1M +761.3%	$5.6M -61.0%	$14.3M

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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

BAILLIE GIFFORD & CO
$554.9M4,824,298 sh
BlackRock, Inc.
$444.8M3,867,080 sh
AQR CAPITAL MANAGEMENT LLC
$268.3M2,332,543 sh
VANGUARD CAPITAL MANAGEMENT LLC
$200.8M1,745,689 sh
TWO SIGMA INVESTMENTS, LP
$187.4M1,629,242 sh
FIL Ltd
$184.4M1,603,554 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$184.4M1,603,280 sh
FEDERATED HERMES, INC.
$157.8M1,371,817 sh
STATE TREASURER STATE OF MICHIGAN
$150.2M1,306,107 sh
STATE STREET CORP
$141.4M1,229,391 sh

Fund	Value	Shares
BAILLIE GIFFORD & CO	$554.9M	4,824,298
BlackRock, Inc.	$444.8M	3,867,080
AQR CAPITAL MANAGEMENT LLC	$268.3M	2,332,543
VANGUARD CAPITAL MANAGEMENT LLC	$200.8M	1,745,689
TWO SIGMA INVESTMENTS, LP	$187.4M	1,629,242
FIL Ltd	$184.4M	1,603,554
VANGUARD PORTFOLIO MANAGEMENT LLC	$184.4M	1,603,280
FEDERATED HERMES, INC.	$157.8M	1,371,817
STATE TREASURER STATE OF MICHIGAN	$150.2M	1,306,107
STATE STREET CORP	$141.4M	1,229,391

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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. DUOL is classified as a mid company.

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.