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Side-by-side financial comparison of Intuitive Surgical (ISRG) and Realty Income (O). Click either name above to swap in a different company.
Intuitive Surgical is the larger business by last-quarter revenue ($2.8B vs $1.5B, roughly 1.9× Realty Income). Intuitive Surgical runs the higher net margin — 29.8% vs 19.9%, a 9.9% gap on every dollar of revenue. On growth, Intuitive Surgical posted the faster year-over-year revenue change (23.0% vs 11.0%). Over the past eight quarters, Intuitive Surgical's revenue compounded faster (17.4% CAGR vs 8.6%).
Intuitive Surgical, Inc. is an American biotechnology company that develops, manufactures, and markets robotic products designed to improve clinical outcomes of patients through minimally invasive surgery, most notably with the da Vinci Surgical System. The company is part of the Nasdaq-100, S&P 100 and S&P 500. As of 31 December 2021, Intuitive Surgical had an installed base of 6,730 da Vinci Surgical Systems, including 4,139 in the U.S.
Realty Income Corporation is a real estate investment trust that invests in free-standing, single-tenant commercial properties in the United States, the United Kingdom, and six other countries in Europe. These properties are subject to NNN Leases. The company is organized in Maryland with its headquarters in San Diego, California.
ISRG vs O — Head-to-Head
Income Statement — Q1 FY2026 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $2.8B | $1.5B |
| Net Profit | $826.0M | $296.1M |
| Gross Margin | 66.1% | — |
| Operating Margin | 64.8% | 21.7% |
| Net Margin | 29.8% | 19.9% |
| Revenue YoY | 23.0% | 11.0% |
| Net Profit YoY | 17.4% | 48.3% |
| EPS (diluted) | $2.28 | $0.32 |
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.
| Q1 26 | $2.8B | — | ||
| Q4 25 | $2.9B | $1.5B | ||
| Q3 25 | $2.5B | $1.5B | ||
| Q2 25 | $2.4B | $1.4B | ||
| Q1 25 | $2.3B | $1.4B | ||
| Q4 24 | $2.4B | $1.3B | ||
| Q3 24 | $2.0B | $1.3B | ||
| Q2 24 | $2.0B | $1.3B |
| Q1 26 | $826.0M | — | ||
| Q4 25 | $794.8M | $296.1M | ||
| Q3 25 | $704.4M | $315.8M | ||
| Q2 25 | $658.4M | $196.9M | ||
| Q1 25 | $698.4M | $249.8M | ||
| Q4 24 | $685.7M | $199.6M | ||
| Q3 24 | $565.1M | $269.5M | ||
| Q2 24 | $526.9M | $259.4M |
| Q1 26 | 66.1% | — | ||
| Q4 25 | 66.4% | — | ||
| Q3 25 | 66.4% | — | ||
| Q2 25 | 66.3% | — | ||
| Q1 25 | 64.7% | — | ||
| Q4 24 | 68.0% | — | ||
| Q3 24 | 67.4% | — | ||
| Q2 24 | 68.3% | — |
| Q1 26 | 64.8% | — | ||
| Q4 25 | 30.2% | 21.7% | ||
| Q3 25 | 30.3% | 23.2% | ||
| Q2 25 | 30.5% | 15.8% | ||
| Q1 25 | 25.7% | 19.3% | ||
| Q4 24 | 30.4% | 16.5% | ||
| Q3 24 | 28.3% | 21.5% | ||
| Q2 24 | 28.2% | 20.7% |
| Q1 26 | 29.8% | — | ||
| Q4 25 | 27.7% | 19.9% | ||
| Q3 25 | 28.1% | 21.5% | ||
| Q2 25 | 27.0% | 14.0% | ||
| Q1 25 | 31.0% | 18.1% | ||
| Q4 24 | 28.4% | 14.9% | ||
| Q3 24 | 27.7% | 20.2% | ||
| Q2 24 | 26.2% | 19.4% |
| Q1 26 | $2.28 | — | ||
| Q4 25 | $2.19 | $0.32 | ||
| Q3 25 | $1.95 | $0.35 | ||
| Q2 25 | $1.81 | $0.22 | ||
| Q1 25 | $1.92 | $0.28 | ||
| Q4 24 | $1.89 | $0.23 | ||
| Q3 24 | $1.56 | $0.30 | ||
| Q2 24 | $1.46 | $0.29 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | — | $434.8M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $17.6B | $39.4B |
| Total Assets | $20.1B | $72.8B |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $5.9B | $434.8M | ||
| Q3 25 | $4.9B | $417.2M | ||
| Q2 25 | $5.3B | $800.4M | ||
| Q1 25 | $4.5B | $319.0M | ||
| Q4 24 | $4.0B | $445.0M | ||
| Q3 24 | $4.2B | $397.0M | ||
| Q2 24 | $4.8B | $442.8M |
| Q1 26 | $17.6B | — | ||
| Q4 25 | $17.8B | $39.4B | ||
| Q3 25 | $16.9B | $39.1B | ||
| Q2 25 | $17.8B | $39.2B | ||
| Q1 25 | $17.1B | $39.0B | ||
| Q4 24 | $16.4B | $38.8B | ||
| Q3 24 | $15.6B | $38.5B | ||
| Q2 24 | $14.7B | $38.6B |
| Q1 26 | $20.1B | — | ||
| Q4 25 | $20.5B | $72.8B | ||
| Q3 25 | $19.4B | $71.3B | ||
| Q2 25 | $20.2B | $71.4B | ||
| Q1 25 | $19.2B | $69.8B | ||
| Q4 24 | $18.7B | $68.8B | ||
| Q3 24 | $17.7B | $68.5B | ||
| Q2 24 | $16.6B | $68.1B |
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 | — | $1.2B |
| Free Cash FlowOCF − Capex | — | $1.2B |
| FCF MarginFCF / Revenue | — | 77.6% |
| Capex IntensityCapex / Revenue | — | 3.3% |
| Cash ConversionOCF / Net Profit | — | 4.06× |
| TTM Free Cash FlowTrailing 4 quarters | — | $3.9B |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $892.5M | $1.2B | ||
| Q3 25 | $841.0M | $943.1M | ||
| Q2 25 | $715.4M | $1.1B | ||
| Q1 25 | $581.6M | $787.5M | ||
| Q4 24 | $822.6M | $972.0M | ||
| Q3 24 | $706.5M | $841.5M | ||
| Q2 24 | $620.5M | $981.2M |
| Q1 26 | — | — | ||
| Q4 25 | $730.0M | $1.2B | ||
| Q3 25 | $735.6M | $909.9M | ||
| Q2 25 | $560.1M | $1.0B | ||
| Q1 25 | $465.0M | $764.6M | ||
| Q4 24 | $510.6M | $935.8M | ||
| Q3 24 | $458.6M | $807.9M | ||
| Q2 24 | $311.1M | $939.2M |
| Q1 26 | — | — | ||
| Q4 25 | 25.5% | 77.6% | ||
| Q3 25 | 29.4% | 61.9% | ||
| Q2 25 | 23.0% | 73.3% | ||
| Q1 25 | 20.6% | 55.4% | ||
| Q4 24 | 21.2% | 69.8% | ||
| Q3 24 | 22.5% | 60.7% | ||
| Q2 24 | 15.5% | 70.1% |
| Q1 26 | — | — | ||
| Q4 25 | 5.7% | 3.3% | ||
| Q3 25 | 4.2% | 2.3% | ||
| Q2 25 | 6.4% | 1.9% | ||
| Q1 25 | 5.2% | 1.7% | ||
| Q4 24 | 12.9% | 2.7% | ||
| Q3 24 | 12.2% | 2.5% | ||
| Q2 24 | 15.4% | 3.1% |
| Q1 26 | — | — | ||
| Q4 25 | 1.12× | 4.06× | ||
| Q3 25 | 1.19× | 2.99× | ||
| Q2 25 | 1.09× | 5.39× | ||
| Q1 25 | 0.83× | 3.15× | ||
| Q4 24 | 1.20× | 4.87× | ||
| Q3 24 | 1.25× | 3.12× | ||
| Q2 24 | 1.18× | 3.78× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
ISRG
| Instruments and accessories | $1.7B | 61% |
| Systems | $650.7M | 23% |
| Services | $433.7M | 16% |
O
| Product And Service Retail | $900.8M | 61% |
| Other | $531.5M | 36% |
