Sinopec Oilfield Service Corp Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Monday, February 9th, 2026:72.85% (-7.09%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 2.0591 | 2.73 | |
| 0.1895 | 8.94 | |
| 0.7067 | 25.80 | |
| -0.0080 | -0.12 | |
| 0.0902 | 1.08 | |
| -0.1586 | -4.33 | |
| 0.1236 | 3.90 | |
| -0.0887 | -2.41 | |
| 0.0786 | 1.92 | |
| -0.0470 | -1.47 |
Estimation Period:
Apr 11, 1995 to Feb 6, 2026
Apr 11, 1995 to Feb 6, 2026
News Impact Curve
Volatility Forecasts
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