ISRG monthly performance report
Monthly ISRG research: returns, drawdown, relative strength, seasonality, and key stats.
ISRG monthly report
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Key takeaways
- Intuitive Surgical (ISRG) closed August 2026 at $375.20, up 6.19% for the month and −21.34% over the trailing 12 months.
- Year-to-date, ISRG is −33.75%, underperforming the S&P 500 which has returned +12.89% YTD.
- The stock is trading −22.16% versus its 200-day moving average ($482.02), a cautious technical signal.
- Over the past three years, ISRG has underperformed the S&P 500 by −50.98%, with a relative strength index reading of 71.
- Win rate over the trailing 39 months stands at 46.2% — 18 positive months versus 21 negative months.
Intuitive Surgical ended August 2026 at $375.20, posting a monthly return of +6.19%. The S&P 500 returned +3.05% over the same window, leaving relative performance at +3.14%.
The current quarter stands at −12.59% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −22.16% versus the 200-day moving average ($482.02).
Year-to-date, ISRG is −33.75% against SPY +12.89%, a gap of −46.64%. The stock is currently −37.87% below its 52-week high, with maximum 3-year drawdown at −45.61%.
| Period | ISRG | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | +1.88% | −0.20% | +2.08% |
| 1 Week | +3.70% | +3.90% | −0.20% |
| 1 Month | +6.19% | +3.05% | +3.14% |
| 3 Months | −18.01% | +7.11% | −25.12% |
| 6 Months |