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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
Forecast batch: 9/15/26
Premium grade: 2026-09-15 05:07 UTC
SO's calibrated band puts the expected move at ±0.9% over 7 days, widening to ±2.2% over 28. Options are currently pricing above the band (VRP ≈ 2.24×) — premium screens rich on this scale. All three horizons are graded on the same premium scale — where each one landed is below.
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: Total Vehicle Sales (r=+0.88), All Car Sales (r=+0.75), Labor Force Participation Rate (r=+0.73), Information Payrolls (r=+0.72), BoE Consumer Credit (r=+0.72)
Inversely correlated: Non Defense Goods Orders Ex Air (r=-0.89), Producer Price Index (r=-0.74), PCE Price Index MoM (r=-0.73)
As of September 15, 2026, SO is trading at 85.97. 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.
Siamrajathanee Public Company Limited (SO) is a publicly traded stock covered by the Sigmanomics analytics platform. The SO stock closed at 85.9700 on September 15, 2026, reflecting a decline of 1.20% from the previous close of 87.0100. SO is listed on the SET in Thailand.
Over the past 30 days, the stock has experienced a strong downtrend with a decline of 7.81%, ranging between 85.9100 and 94.4396. The price currently trades below its 20-day moving average of 88.9159. The 14-day RSI stands at 27.5, in oversold territory.
Over the same 30-day window, daily-return volatility was 0.77%, reflecting subdued price variability for this stock. Across the past 52 weeks, the stock has traded between 83.8000 and 100.84, with the current price near the low end of that range.
Daily-return volatility of 0.77% is subdued for this stock, leaving recent ranges compressed — watch for a decisive break of the band as the more telling development. SO is currently trading 3.31% below its 20-day moving average and sitting in the lower portion of its 52-week range. Its 14-day RSI reads 27.5, currently in oversold territory.
Auto-generated from Sigmanomics market data. Last update Sep 2026.
Sigmacast forecasts span six horizons — 30-minute, 1-hour, 2-hour, 4-hour, 12-hour, and daily — refreshed continuously as new bars arrive.