Research HubSoftware & Cloud ServicesDuolingo, Inc. (DUOL)

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SEC 10-K / 10-Q Equity ResearchSoftware & Cloud ServicesTicker: DUOL

Duolingo, Inc. (DUOL) DCF Valuation & Fundamental Primer

Duolingo, Inc. (DUOL) currently trades at $185.15 with an enterprise value of $16.69B. Our proprietary institutional model rates Duolingo, Inc. at 83/100 (Grade: A · High-Quality Compounder). The current market price prices in an implied 5-year revenue CAGR of 21.5% vs. historical growth of 42.3% (Substantial Margin of Safety).

GDA Quality Score

A83/100

High-Quality Compounder

Share Price / DCF Base

$185.15 / $369.77

Enterprise Value

$7.99B

TTM Revenue

$748.0M (+42.3%)

Gross Margin

72.8%

Rule of 40 Score

78.8%

EV / TTM Revenue

10.7×

Structural Moat: Enterprise Software & Cloud Services Switching Costs & Recurring Workflow Integration

Key Growth Catalyst: AI workflow automation, multi-module expansion across enterprise cohorts, and operating margin leverage at Duolingo, Inc..

Institutional fundamental teardown of Duolingo, Inc. (DUOL) covering SEC 10-K/10-Q cash flow conversion, SBC dilution friction, and Reverse-DCF valuation hurdles.

Seed DUOL in Interactive 3-Statement Model

Section 1 · Intrinsic Valuation Engine

Duolingo, Inc. (DUOL) 3-Scenario DCF Valuation Range

WACC: 10.0% · Terminal Growth: 2.5% · Diluted Shares: 47.1M

bear Case DCFSensitivity

$121.44

Implied Equity Value:$5.72B

vs Current ($185.15):-34.4%

base Case DCFPrimary Benchmark

$369.77

Implied Equity Value:$17.42B

vs Current ($185.15):+99.7%

bull Case DCFSensitivity

$805.69

Implied Equity Value:$37.95B

vs Current ($185.15):+335.2%

Interactive What-If DCF SandboxSim Rule of 40: 78.8%

Stress-test DUOL's 5-year growth, target FCF margin, WACC, terminal methodology, and SBC/dilution friction in real time.

Seed Custom Drivers in /model

1-Click Regimes:

5Y Revenue CAGR42.3%

2%Hist: 42.3%50%

Target FCF Margin36.5%

5%Base: 36.5%45%

WACC Discount Rate10.0%

6.5%Base: 10%14.5%

Terminal Growth (g)2.5%

1.0%Implies 13.7× Y5 FCF4.0%

Accounting Lens:

Simulated Implied Price$369.52

Spread vs Market+99.6%

Simulated EV$16.67B

Effective FCF Margin36.5%

Simulated 5-Year Cash Flow Trajectory (Unlevered FCF vs. Discounted PV)Cumulative 5Y PV: $3.15B

Year 1$1.06B

FCF:$388.5M

PV:$353.2M

Year 2$1.51B

FCF:$552.9M

PV:$456.9M

Year 3$2.16B

FCF:$786.7M

PV:$591.1M

Year 4$3.07B

FCF:$1.12B

PV:$764.6M

Year 5$4.36B

FCF:$1.59B

PV:$989.2M

Enterprise Value Composition Bridge$16.67B

Split between 5-Year Explicit Cash Flows and Discounted Terminal Value

5Y Explicit PV: $3.15B (18.9%)Terminal PV: $13.52B (81.1%)

(+) Balance Sheet Cash & Equivalents+$785.8M

(−) Total Debt Obligations−$54.7M

(=) Implied Equity Value (47.1M shs)$17.40B

2D Institutional Valuation Sensitivity Heatmap

Implied share price & upside/downside spread across 25 valuation states (Current Price: $185.15).

WACC \ Terminal	1.5%	2.0%	2.5%	3.0%	3.5%
8.5%	$411.97 +123%	$438.79 +137%	$470.08 +154%	$507.06 +174%	$551.43 +198%
9.3%	$368.75 +99%	$389.88 +111%	$414.13 +124%	$442.27 +139%	$475.31 +157%
10.0%	$333.28 +80%	$350.27 +89%	$369.52 +100%	$391.52 +111%	$416.91 +125%
10.8%	$303.68 +64%	$317.57 +72%	$333.14 +80%	$350.72 +89%	$370.73 +100%
11.5%	$278.62 +50%	$290.13 +57%	$302.93 +64%	$317.23 +71%	$333.32 +80%

Section 2 · Fundamental Underwriting

Institutional Software Quality Scorecard (83/100 · Grade A)

High-Quality Compounder

Strong fundamentals, above-average cash generation, and robust competitive positioning.

Cash Conversion25 / 25

Actual: 437% of EBITTarget: Target: ≥100%

Elite deferred revenue float; FCF exceeds operating income by >20%

Dilution Friction16 / 25

Actual: 14.8% of RevTarget: Target: ≤8%

Standard software SBC dilution; modest equity transfer to employees

Unit Economics20 / 25

Actual: 73% GM / R40: 79%Target: Target: ≥75% GM / ≥40% R40

High-quality software margins with healthy balanced growth and profitability

Balance Sheet22 / 25

Actual: +$731.1M Net CashTarget: Target: Net Cash > 0

Positive net cash cushion; self-funding operations with zero insolvency risk

Core Investment Strengths & Moats

High-grade cash conversion: FCF is 437% of EBIT driven by upfront annual collections
Healthy unit economics: 72.8% gross margin
Net cash positive: $731.1M balance sheet buffer

Key Operational & Dilution Risks

Section 3 · Expectations Investing

Reverse-DCF Solver: What Growth is Priced Into DUOL?

Substantial Margin of Safety

The current share price only requires 21.5% 5-year CAGR (41.2% dilution-adjusted), well below historical growth of 42.3%. If the company maintains baseline execution, there is asymmetric upside.

Implied 5-Year Revenue CAGR

21.5%

Required to justify $7.99B EV

Historical Run-Rate CAGR

42.3%

Audited multi-year top-line trajectory

Growth Hurdle Spread

-20.8%

Implied hurdle minus historical growth

Implied FCF Margin @ Hist. Growth

17.5%

Steady-state FCF margin needed at current CAGR

Institutional Dilution-Adjusted Hurdle Lens

Headline Reverse-DCF ignores Stock-Based Compensation (14.8% of revenue) and annual share dilution (9.2%/yr). Accounting for both requires 41.2% 5-year revenue CAGR to justify $185.15/sh on a true per-share economic cash flow basis.

True Economic Hurdle41.2%

SBC & Dilution Hurdle Tax+19.7% / yr

Section 4 · 5-Year Forecast Schedule

Duolingo, Inc. (DUOL) 5-Year Fundamental Forecast

Customize in Live Engine

Statement Line Item	TTM Audited Base	TTM	Y1	Y2	Y3	Y4	Y5
Revenue	$748.0M	$748.0M	$1.06B	$1.51B	$2.15B	$3.07B	$4.36B
Gross Profit	$544.4M	$544.4M	$774.6M	$1.10B	$1.57B	$2.23B	$3.17B
Operating Income (EBIT)	$62.6M	$62.6M	$89.1M	$126.7M	$180.3M	$256.6M	$365.1M
Stock-Based Compensation (SBC)	$110.5M	$110.5M	$157.2M	$223.7M	$318.2M	$452.8M	$644.2M
Unlevered Free Cash Flow (FCF)	$273.4M	$273.4M	$389.0M	$553.5M	$787.5M	$1.12B	$1.59B
SBC-Adjusted True Cash Flow	$162.9M	$162.9M	$231.8M	$329.8M	$469.3M	$667.6M	$949.9M

Section 5 · Relative Valuation Multiples & Regression

Software & Cloud Services Peer Comparables & Rule of 40 Regression

Click any peer node or ticker to open its dedicated equity research report

Rule of 40 vs. EV / Revenue Multiple Regression

OLS Fit: EV/Rev = 1.9 + 0.18 × (Rule of 40) · R² = 14%

Stocks below the gold regression line trade at a discount relative to their Rule of 40 compounding efficiency.

DUOL Actual vs. Reg. Multiple10.7× vs 15.8× fair

Reg.-Implied Share Price$266.78 (32.5% Discount)

DUOLDuolingo, Inc.·Rule of 40: 78.8%·Actual EV/Rev: 10.7×·Regression Fair Multiple: 15.8×

32.5% Below Trendline (Attractive)Open DUOL Report

Company	Ticker	Market Cap	TTM Revenue	Gross Margin	FCF Margin	Rule of 40	SBC % Rev	EV / Rev
Duolingo, Inc.	DUOL	$8.72B	$748.0M	72.8%	36.5%	78.8%	14.8%	10.7×
ServiceNow	NOW	$152.61B	$10.98B	79.2%	31.1%	54.2%	15.9%	13.9×
Workday, Inc.	WDAY	$50.35B	$8.00B	75.0%	27.4%	43.9%	19.0%	6.4×
Salesforce	CRM	$217.10B	$37.90B	77.2%	32.8%	42.8%	8.4%	5.8×
Datadog	DDOG	$46.05B	$2.68B	80.8%	31.1%	57.7%	21.3%	17.4×
Snowflake Inc.	SNOW	$71.79B	$3.63B	66.5%	25.2%	57.7%	40.8%	20.0×
Hubspot	HUBS	$19.89B	$2.63B	85.0%	21.3%	52.7%	19.2%	7.7×
Peer Cohort Median Benchmark (N=6)				78.2%	29.2%	53.5%	19.1%	10.8×

Section 6 · Downside Protection & Multiple Sensitivity

EV / Revenue Multiple Compression Stress Test

Multiple Scenario	EV / Revenue	Implied Enterprise Value	Implied Equity Value	Implied Share Price	Delta vs Current
Current Multiple	10.7×	$7.99B	$8.72B	$185.15	0.0%
-20% Multiple Compression	8.5×	$6.39B	$7.12B	$151.22	-20.0%
-35% Multiple Compression	6.9×	$5.19B	$5.92B	$125.78	-35.0%
Software Baseline Floor (5.0× EV/Rev)	5.0×	$3.74B	$4.47B	$94.93	-53.2%

Section 7 · Investor Diligence FAQ

Frequently Asked Questions: Duolingo, Inc. (DUOL) Valuation

What is Duolingo, Inc. (DUOL)'s intrinsic DCF valuation and implied share price?

Based on audited SEC 10-K/10-Q filings and a 5-year 3-statement discounted cash flow (DCF) model, Duolingo, Inc. (DUOL) has a Base Case implied value of $369.77 per share (with a Bear Case of $121.44 and a Bull Case of $805.69), compared to its current price of $185.15. The model discounts projected free cash flows at a 10.0% WACC and a 2.5% terminal growth rate.

What is Duolingo, Inc. (DUOL)'s Rule of 40 score and Free Cash Flow margin?

Duolingo, Inc. achieves a Rule of 40 score of 78.8%, combining a 42.3% revenue growth run-rate with a 36.5% TTM free cash flow margin on $748.0M in trailing twelve-month revenue. In the Software & Cloud Services peer cohort, the median Rule of 40 benchmark is 53.5%.

What revenue growth rate is priced into DUOL stock according to Reverse-DCF analysis?

At $185.15 per share (Enterprise Value of $7.99B), our Reverse-DCF solver indicates the market is pricing in a 5-year implied revenue CAGR of 21.5%, compared to Duolingo, Inc.'s historical CAGR of 42.3%. Overall market expectations are rated as "Substantial Margin of Safety".

How does Duolingo, Inc. compare to Software & Cloud Services software peers?

Duolingo, Inc. (DUOL) earns an institutional Software Quality Score of 83/100 (Grade A — High-Quality Compounder). Across its Software & Cloud Services peer group (NOW, WDAY, CRM, DDOG, SNOW), the cohort trades at a median EV/TTM Revenue multiple of 10.8× and a median gross margin of 78.2%.

How does Stock-Based Compensation (SBC) impact Duolingo, Inc. (DUOL)'s valuation?

Duolingo, Inc. recorded $110.5M in TTM stock-based compensation (14.8% of revenue). When treating SBC as a cash-equivalent compensation expense, Duolingo, Inc.'s SBC-adjusted free cash flow yield is 1.9%, scoring 16/25 on our Shareholder Dilution Friction pillar.

Duolingo, Inc. (DUOL) DCF Valuation & Fundamental Primer

WACC \ Terminal

1.5%

2.0%

2.5%

3.0%

3.5%

8.5%

$411.97

+123%

$438.79

+137%

$470.08

+154%

$507.06

+174%

$551.43

+198%

9.3%

$368.75

+99%

$389.88

+111%

$414.13

+124%

$442.27

+139%

$475.31

+157%

10.0%

$333.28

+80%

$350.27

+89%

$369.52

+100%

$391.52

+111%

$416.91

+125%

10.8%

$303.68

+64%

$317.57

+72%

$333.14

+80%

$350.72

+89%

$370.73

+100%

11.5%

$278.62

+50%

$290.13

+57%

$302.93

+64%

$317.23

+71%

$333.32

+80%

Statement Line Item

TTM Audited Base

TTM

Revenue

$748.0M

$1.06B

$1.51B

$2.15B

$3.07B

$4.36B

Gross Profit

$544.4M

$774.6M

$1.10B

$1.57B

$2.23B

$3.17B

Operating Income (EBIT)

$62.6M

$89.1M

$126.7M

$180.3M

$256.6M

$365.1M

Stock-Based Compensation (SBC)

$110.5M

$157.2M

$223.7M

$318.2M

$452.8M

$644.2M

Unlevered Free Cash Flow (FCF)

$273.4M

$389.0M

$553.5M

$787.5M

$1.12B

$1.59B

SBC-Adjusted True Cash Flow

$162.9M

$231.8M

$329.8M

$469.3M

$667.6M

$949.9M

Company

Ticker

Market Cap

TTM Revenue

Gross Margin

FCF Margin

Rule of 40

SBC % Rev

EV / Rev

Duolingo, Inc.

DUOL

$8.72B

$748.0M

72.8%

36.5%

78.8%

14.8%

10.7×

ServiceNow

NOW

$152.61B

$10.98B

79.2%

31.1%

54.2%

15.9%

13.9×

Workday, Inc.

WDAY

$50.35B

$8.00B

75.0%

27.4%

43.9%

19.0%

6.4×

Salesforce

CRM

$217.10B

$37.90B

77.2%

32.8%

42.8%

8.4%

5.8×

Datadog

DDOG

$46.05B

$2.68B

80.8%

31.1%

57.7%

21.3%

17.4×

Snowflake Inc.

SNOW

$71.79B

$3.63B

66.5%

25.2%

57.7%

40.8%

20.0×

Hubspot

HUBS

$19.89B

$2.63B

85.0%

21.3%

52.7%

19.2%

7.7×

Peer Cohort Median Benchmark (N=6)

78.2%

29.2%

53.5%

19.1%

10.8×

Multiple Scenario

EV / Revenue

Implied Enterprise Value

Implied Equity Value

Implied Share Price

Delta vs Current

Current Multiple

10.7×

$7.99B

$8.72B

$185.15

0.0%

-20% Multiple Compression

8.5×

$6.39B

$7.12B

$151.22

-20.0%

-35% Multiple Compression

6.9×

$5.19B

$5.92B

$125.78

-35.0%

Software Baseline Floor (5.0× EV/Rev)

5.0×

$3.74B

$4.47B

$94.93

-53.2%

Duolingo, Inc. (DUOL) 3-Scenario DCF Valuation Range

2D Institutional Valuation Sensitivity Heatmap

Institutional Software Quality Scorecard (83/100 · Grade A)

Core Investment Strengths & Moats

Key Operational & Dilution Risks

Reverse-DCF Solver: What Growth is Priced Into DUOL?

Duolingo, Inc. (DUOL) 5-Year Fundamental Forecast

Software & Cloud Services Peer Comparables & Rule of 40 Regression

Rule of 40 vs. EV / Revenue Multiple Regression

EV / Revenue Multiple Compression Stress Test

Frequently Asked Questions: Duolingo, Inc. (DUOL) Valuation

What is Duolingo, Inc. (DUOL)'s intrinsic DCF valuation and implied share price?

What is Duolingo, Inc. (DUOL)'s Rule of 40 score and Free Cash Flow margin?

What revenue growth rate is priced into DUOL stock according to Reverse-DCF analysis?

How does Duolingo, Inc. compare to Software & Cloud Services software peers?

How does Stock-Based Compensation (SBC) impact Duolingo, Inc. (DUOL)'s valuation?

Related Software & Cloud Services Equity Research Reports

Duolingo, Inc. (DUOL) 3-Scenario DCF Valuation Range

2D Institutional Valuation Sensitivity Heatmap

Institutional Software Quality Scorecard (83/100 · Grade A)

Core Investment Strengths & Moats

Key Operational & Dilution Risks

Reverse-DCF Solver: What Growth is Priced Into DUOL?

Duolingo, Inc. (DUOL) 5-Year Fundamental Forecast

Software & Cloud Services Peer Comparables & Rule of 40 Regression

Rule of 40 vs. EV / Revenue Multiple Regression

EV / Revenue Multiple Compression Stress Test

Frequently Asked Questions: Duolingo, Inc. (DUOL) Valuation

What is Duolingo, Inc. (DUOL)'s intrinsic DCF valuation and implied share price?

What is Duolingo, Inc. (DUOL)'s Rule of 40 score and Free Cash Flow margin?

What revenue growth rate is priced into DUOL stock according to Reverse-DCF analysis?

How does Duolingo, Inc. compare to Software & Cloud Services software peers?

How does Stock-Based Compensation (SBC) impact Duolingo, Inc. (DUOL)'s valuation?

Related Software & Cloud Services Equity Research Reports