vs
Side-by-side financial comparison of Duolingo, Inc. (DUOL) and STONERIDGE INC (SRI). Click either name above to swap in a different company.
Duolingo, Inc. is the larger business by last-quarter revenue ($282.9M vs $205.2M, roughly 1.4× STONERIDGE INC). On growth, Duolingo, Inc. posted the faster year-over-year revenue change (35.0% vs -6.0%). Duolingo, Inc. produced more free cash flow last quarter ($96.6M vs $2.6M). Over the past eight quarters, Duolingo, Inc.'s revenue compounded faster (29.9% CAGR vs -7.4%).
Duolingo, Inc. is a leading global edtech firm operating a gamified language learning platform. It offers free and premium self-paced courses for over 40 languages, plus language certification, math learning tools, and literacy programs, serving individual learners, schools and corporate clients worldwide.
Stoneridge Inc is a global designer and manufacturer of advanced electrical and electronic components, integrated systems, and sensor solutions. It serves automotive, commercial vehicle, off-highway, and aerospace sectors, delivering products that boost vehicle safety, efficiency, connectivity, and environmental performance across key global markets.
DUOL vs SRI — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $282.9M | $205.2M |
| Net Profit | $42.0M | — |
| Gross Margin | 72.8% | 16.2% |
| Operating Margin | 15.4% | -14.4% |
| Net Margin | 14.8% | — |
| Revenue YoY | 35.0% | -6.0% |
| Net Profit YoY | 201.7% | — |
| EPS (diluted) | $0.99 | $-2.76 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $282.9M | $205.2M | ||
| Q3 25 | $271.7M | $210.3M | ||
| Q2 25 | $252.3M | $228.0M | ||
| Q1 25 | $230.7M | $217.9M | ||
| Q4 24 | $209.6M | $218.2M | ||
| Q3 24 | $192.6M | $213.8M | ||
| Q2 24 | $178.3M | $237.1M | ||
| Q1 24 | $167.6M | $239.2M |
| Q4 25 | $42.0M | — | ||
| Q3 25 | $292.2M | $-9.4M | ||
| Q2 25 | $44.8M | $-9.4M | ||
| Q1 25 | $35.1M | $-7.2M | ||
| Q4 24 | $13.9M | — | ||
| Q3 24 | $23.4M | $-7.1M | ||
| Q2 24 | $24.4M | $2.8M | ||
| Q1 24 | $27.0M | $-6.1M |
| Q4 25 | 72.8% | 16.2% | ||
| Q3 25 | 72.5% | 20.3% | ||
| Q2 25 | 72.4% | 21.5% | ||
| Q1 25 | 71.1% | 21.2% | ||
| Q4 24 | 71.9% | 19.5% | ||
| Q3 24 | 72.9% | 20.8% | ||
| Q2 24 | 73.4% | 22.7% | ||
| Q1 24 | 73.0% | 20.2% |
| Q4 25 | 15.4% | -14.4% | ||
| Q3 25 | 12.9% | -1.6% | ||
| Q2 25 | 13.2% | -1.1% | ||
| Q1 25 | 10.2% | -1.5% | ||
| Q4 24 | 6.6% | -2.0% | ||
| Q3 24 | 7.0% | 0.1% | ||
| Q2 24 | 10.5% | 1.4% | ||
| Q1 24 | 9.8% | 0.1% |
| Q4 25 | 14.8% | — | ||
| Q3 25 | 107.5% | -4.5% | ||
| Q2 25 | 17.8% | -4.1% | ||
| Q1 25 | 15.2% | -3.3% | ||
| Q4 24 | 6.6% | — | ||
| Q3 24 | 12.1% | -3.3% | ||
| Q2 24 | 13.7% | 1.2% | ||
| Q1 24 | 16.1% | -2.6% |
| Q4 25 | $0.99 | $-2.76 | ||
| Q3 25 | $5.95 | $-0.34 | ||
| Q2 25 | $0.91 | $-0.34 | ||
| Q1 25 | $0.72 | $-0.26 | ||
| Q4 24 | $0.31 | $-0.22 | ||
| Q3 24 | $0.49 | $-0.26 | ||
| Q2 24 | $0.51 | $0.10 | ||
| Q1 24 | $0.57 | $-0.22 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $1.0B | $66.3M |
| Total DebtLower is stronger | — | $180.9M |
| Stockholders' EquityBook value | $1.3B | $179.8M |
| Total Assets | $2.0B | $551.2M |
| Debt / EquityLower = less leverage | — | 1.01× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $1.0B | $66.3M | ||
| Q3 25 | $1.0B | $54.0M | ||
| Q2 25 | $976.2M | $49.8M | ||
| Q1 25 | $884.0M | $79.1M | ||
| Q4 24 | $785.8M | $71.8M | ||
| Q3 24 | $854.4M | $54.1M | ||
| Q2 24 | $888.2M | $42.1M | ||
| Q1 24 | $829.7M | $48.4M |
| Q4 25 | — | $180.9M | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | $201.6M | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | $1.3B | $179.8M | ||
| Q3 25 | $1.3B | $251.2M | ||
| Q2 25 | $977.0M | $260.5M | ||
| Q1 25 | $893.8M | $253.1M | ||
| Q4 24 | $824.5M | $245.3M | ||
| Q3 24 | $822.5M | $271.4M | ||
| Q2 24 | $766.9M | $270.5M | ||
| Q1 24 | $711.1M | $277.3M |
| Q4 25 | $2.0B | $551.2M | ||
| Q3 25 | $1.9B | $632.1M | ||
| Q2 25 | $1.5B | $639.4M | ||
| Q1 25 | $1.4B | $657.4M | ||
| Q4 24 | $1.3B | $621.6M | ||
| Q3 24 | $1.2B | $662.5M | ||
| Q2 24 | $1.1B | $666.7M | ||
| Q1 24 | $1.1B | $675.4M |
| Q4 25 | — | 1.01× | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | 0.82× | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $107.3M | $8.8M |
| Free Cash FlowOCF − Capex | $96.6M | $2.6M |
| FCF MarginFCF / Revenue | 34.1% | 1.3% |
| Capex IntensityCapex / Revenue | 3.8% | 3.0% |
| Cash ConversionOCF / Net Profit | 2.56× | — |
| TTM Free Cash FlowTrailing 4 quarters | $369.7M | $12.2M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $107.3M | $8.8M | ||
| Q3 25 | $84.2M | $3.6M | ||
| Q2 25 | $90.7M | $10.7M | ||
| Q1 25 | $105.6M | $10.9M | ||
| Q4 24 | $83.3M | $19.2M | ||
| Q3 24 | $56.3M | $10.8M | ||
| Q2 24 | $62.4M | $8.7M | ||
| Q1 24 | $83.5M | $9.1M |
| Q4 25 | $96.6M | $2.6M | ||
| Q3 25 | $79.4M | $-2.7M | ||
| Q2 25 | $89.5M | $7.4M | ||
| Q1 25 | $104.3M | $4.8M | ||
| Q4 24 | $81.4M | $14.0M | ||
| Q3 24 | $53.1M | $4.6M | ||
| Q2 24 | $56.8M | $1.5M | ||
| Q1 24 | $82.1M | $3.3M |
| Q4 25 | 34.1% | 1.3% | ||
| Q3 25 | 29.2% | -1.3% | ||
| Q2 25 | 35.5% | 3.3% | ||
| Q1 25 | 45.2% | 2.2% | ||
| Q4 24 | 38.8% | 6.4% | ||
| Q3 24 | 27.6% | 2.2% | ||
| Q2 24 | 31.9% | 0.6% | ||
| Q1 24 | 49.0% | 1.4% |
| Q4 25 | 3.8% | 3.0% | ||
| Q3 25 | 1.8% | 3.0% | ||
| Q2 25 | 0.5% | 1.4% | ||
| Q1 25 | 0.6% | 2.8% | ||
| Q4 24 | 0.9% | 2.4% | ||
| Q3 24 | 1.7% | 2.9% | ||
| Q2 24 | 3.1% | 3.0% | ||
| Q1 24 | 0.8% | 2.4% |
| Q4 25 | 2.56× | — | ||
| Q3 25 | 0.29× | — | ||
| Q2 25 | 2.02× | — | ||
| Q1 25 | 3.01× | — | ||
| Q4 24 | 5.99× | — | ||
| Q3 24 | 2.41× | — | ||
| Q2 24 | 2.56× | 3.11× | ||
| Q1 24 | 3.10× | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
DUOL
| License And Service | $242.3M | 86% |
| Advertising | $20.2M | 7% |
| English Test | $10.3M | 4% |
| Other | $10.1M | 4% |
SRI
| Control Devices | $51.7M | 25% |
| Electronics | $38.0M | 19% |
| EE | $34.2M | 17% |
| SE | $28.6M | 14% |
| NL | $24.5M | 12% |
| Stoneridge Brazil | $14.1M | 7% |
| Asia Pacific | $13.1M | 6% |
