Duolingo, Inc. (DUOL) vs ZoomInfo Technologies Inc. (ZI)

DUOL leads on 8 of 13 compared metrics.

A side-by-side comparison of Duolingo, Inc. and ZoomInfo Technologies Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 13, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Total return — DUOL vs ZI

growth of $100 · last 4y
DUOL +258.2%ZI -81.2%DUOL compounded faster
Log scale — wide-divergence pair
101001kStart $1002022202320242025$358$19
DUOL ZI

DUOL vs ZI: by the numbers

  • DUOL is the larger company ($5.71B vs $3.42B market cap).
  • DUOL trades at the lower earnings multiple (14.28 vs 82.65 P/E).
  • DUOL converts more revenue to profit (38.44% vs 10.10% net margin).
  • DUOL grew revenue faster over the past five years (42.21% vs 18.92% CAGR).

Which is better, DUOL or ZI?

Metric tally: DUOL 8 · ZI 5

It depends on what you're optimizing for:

ValueDUOL(lower P/E)
GrowthDUOL(faster 5Y revenue CAGR)
QualityDUOL(higher ROIC)

Valuation

MetricDUOLZI
P/E ratio14.2882.65
Forward P/E43.27
P/S ratio5.472.87
P/B ratio4.322.11
PEG ratio0.060.08
EV / EBITDA22.7628.70
FCF yield6.93%8.71%

Profitability

MetricDUOLZI
Gross margin72.14%83.79%
Operating margin14.78%18.60%
Net margin38.44%10.10%
ROE30.35%8.60%
ROIC9.80%2.48%

Growth (annualized)

MetricDUOLZI
Revenue CAGR (5Y)42.21%18.92%
FCF CAGR (5Y)91.58%17.74%
Total return CAGR (5Y)-27.31%

Frequently asked

Which is better, DUOL or ZI?
It depends on your goal. value: DUOL (lower P/E); growth: DUOL (faster 5Y revenue CAGR); quality: DUOL (higher ROIC). Across all compared metrics, DUOL leads 8 to 5.
Is DUOL or ZI cheaper?
On trailing earnings, DUOL is cheaper: DUOL trades at a 14.28 P/E and ZI at 82.65.
Which has grown faster, DUOL or ZI?
Over the past five years, DUOL grew revenue faster — DUOL at a 42.21% CAGR versus ZI at 18.92%.
Is DUOL or ZI more profitable?
DUOL runs the higher net margin — DUOL at 38.44% versus ZI at 10.10%.

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified June 13, 2026.