In Q1'26, ISRG's ROE reached 4.67%, ROA stood at 4.08%, and ROIC achieved 4.27%, reflecting a solid performance with all metrics showing year-over-year gains from Q1'25 levels of 4.08% for ROE, 3.63% for ROA, and 3.27% for ROIC. Over the period from Q2'23 to Q1'26, ROE and ROA exhibited a generally upward trend with moderate volatility, starting from lows around 3.5% and 3.0% respectively in mid-2023 before climbing steadily, particularly accelerating in Q4'24 and Q1'26 amid seasonal peaks in Q4 quarters. ROIC followed a similar pattern but with data gaps in Q2'25 and Q4'25, maintaining stability around 3.0-3.5% through 2024 before a notable rise to 4.27% in Q1'26, underscoring improved capital efficiency across the board despite intermittent fluctuations.