Forensic Analysis · Software & SaaS · as of Nov 8, 2026
Duolingo, Inc. (DUOL)
A forensic read on Duolingo, Inc. built from its complete SEC filings — financial-health screens, earnings quality, red flags and a price-aware rating. Reproducible math, not opinion.
C · Mixed — selective
Forensic grade
Safe
Financial health
6.0
Distress distance
Watch
Earnings quality
1
Forensic signals
38.1%
ROE
38.7%
Revenue growth
This free snapshot doesn't read filing or proxy text, so the auditor-quality and governance checks that can lower a grade were not evaluated (auditor quality, say on pay, board independence, going concern). Those checks only ever lower a grade, so the full analysis can land below the grade above but never above it — treat it as the most favourable reading, not the settled one.
Duolingo, Inc. earns a C (Mixed — selective) forensic quality grade, and its balance-sheet distress test reads 6.0, placing it in the Safe zone. 1 forensic signal was flagged in its latest SEC filings, led by accruals ratio (% of NOA).
What the filings flag
+136.7%
FY2024→FY2025
Accruals ratio (% of NOA).Net operating assets grew +136.7% relative to their own average in FY2025 — scaled by NOA itself, not by total assets, which is what the Forensic Screens card's own accrual row divides by. Accruals are building sharply — a large slice of profit sits in operating assets, not cash. An accrual is a claim that still has to be collected or written down, so the gap resolves in a later period whichever way it goes. Net operating assets also rose $33.1M through acquisitions (increase in goodwill and intangibles); that purchase is investing and is excluded from this ratio. The build is led by receivables up +26% against revenue +39%. A cash-flow measure on the same base agrees: reported earnings ran ahead of operating cash by 15% of net operating assets, against an accruals ratio of 136.7%. The two are computed differently: the accruals ratio is the change in net operating assets over average net operating assets, while the cash-flow figure is net income less operating cash flow over that same average.Accruals ratio: the year-over-year change in net operating assets, relative to their own average.NOA (net operating assets): the money tied up in running the business, operating assets minus operating liabilities.
Key fundamentals
Latest Revenue$1.04B
Revenue Growth YoY+38.7%
Revenue CAGR (2yr)+39.8%
Net Margin39.9%
Free Cash Flow$369.7M
Return on Equity38.1%
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