Refinaria Petroleo Manguinh Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Wednesday, February 11th, 2026:157.52% (+26.28%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 2.3398 | 5.11 | |
| 0.2097 | 5.35 | |
| 0.4787 | 7.09 | |
| 0.6455 | 2.86 | |
| -1.0275 | -2.50 | |
| 0.6193 | 1.64 | |
| -0.3204 | -1.38 | |
| 0.0876 | 0.50 | |
| 0.0630 | 0.30 | |
| -0.0385 | -0.14 | |
| -0.2726 | -0.71 | |
| 0.4989 | 1.25 | |
| -0.3302 | -1.22 |
Estimation Period:
Jan 27, 2005 to Feb 6, 2026
Jan 27, 2005 to Feb 6, 2026
News Impact Curve
Volatility Forecasts
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