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Sam Bourgi is an analyst, writer and financial market commentator featured in and cited by U.S. Congress, Department of Justice, Chicago Board Options Exchange, Barron's and Forbes. He covers stocks, bonds, mutual funds, ETFs, forex, Bitcoin, cryptocurrency, real estate and macroeconomics. He has written over 25,000 articles and over 40 whitepapers and e-books.
Sigmacast expected range · 7–28-day calibrated zone
Cheap vol watchForecast batch: 7/31/26
Market-data read
ISRG reads range-bound — no clean directional character at any horizon (ER 0.26 / 0.31 / 0.19). Recent action is directionless chop rather than a trend. Term-structure band: ±7.8% / ±11.9% / ±18.3% (7/14/28d).
Nested 60 / 80 / 95 calibrated expected-range · centered on current price (gold tick)
Macro correlations · context (not confirmation)
8 correlated indicators
Observed historical correlations, not forward signals.
Positively correlated: All Car Sales (r=+0.76), BoE Consumer Credit (r=+0.70)
Inversely correlated: Non Defense Goods Orders Ex Air (r=-0.92), PCE Price Index MoM (r=-0.78), Kansas Fed Composite Index (r=-0.76), ISM Manufacturing New Orders (r=-0.73), CPI Food at Home (r=-0.73), Financial Activities Payrolls (r=-0.72)
As of July 31, 2026, ISRG is trading at 353.39. Our multi-model Sigmanomics forecast for this stock generates expected price ranges (magnitude, not direction) across 7-day, 14-day, and 28-day horizons, each with a recent-path character readout. Based on ensemble models including SIGMACAST, Σ-Adaptive, and Σ-Trend with model-agreement confidence bands. Updated daily.
Containment = how often the band held (backtest) — magnitude only, not a directional record.
Forecasts generated by Sigmanomics engine. Not financial advice.
Market-data read
Intuitive Surgical, Inc. (ISRG) is a publicly traded stock covered by the Sigmanomics analytics platform. The ISRG stock closed at 353.39 on July 31, 2026, reflecting a gain of 0.15% from the previous close of 352.86. ISRG is listed on the VSE in Austria.
Over the past 30 days, the stock has experienced a strong downtrend with a decline of 13.07%, ranging between 328.57 and 443.86. The price currently trades below its 20-day moving average of 375.41. The 14-day RSI stands at 40.1, in neutral territory, indicating balanced momentum.
Over the same 30-day window, daily-return volatility was 3.62%, reflecting heightened price variability for this stock. Across the past 52 weeks, the stock has traded between 328.57 and 603.88, with the current price near the low end of that range.
Daily-return volatility of 3.62% runs elevated for this stock, so price ranges are likely to stay wide — watch how price behaves around its recent range rather than treating any single level as fixed. ISRG is currently trading 5.87% below its 20-day moving average and sitting in the lower portion of its 52-week range. Its 14-day RSI reads 40.1, currently in neutral territory.
Auto-generated from Sigmanomics market data. Last update Jul 2026.
Sigmacast forecasts span six horizons — 30-minute, 1-hour, 2-hour, 4-hour, 12-hour, and daily — refreshed continuously as new bars arrive.