Stef SA Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Friday, February 20th, 2026:21.71% (-2.38%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 1.5335 | 6.47 | |
| 0.2245 | 7.67 | |
| 0.5027 | 8.68 | |
| 0.0265 | 0.42 | |
| 0.0025 | 0.03 | |
| -0.0813 | -1.33 | |
| 0.0272 | 0.39 | |
| 0.1831 | 2.41 | |
| -0.2664 | -3.46 | |
| 0.1384 | 2.00 | |
| -0.0703 | -1.23 | |
| 0.0626 | 1.53 |
Estimation Period:
Jun 29, 1998 to Feb 13, 2026
Jun 29, 1998 to Feb 13, 2026
News Impact Curve
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