PSI 20 Portuguese Stock Index Spline-GARCH Volatility Analysis
Volatility Prediction for Friday, March 20th, 2026:18.57% (+4.15%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.8246 | 5.71 | |
| 0.1498 | 10.12 | |
| 0.8018 | 48.31 | |
| 0.1007 | 3.93 | |
| -0.2069 | -5.77 | |
| 0.1927 | 8.22 | |
| -0.1189 | -5.01 | |
| 0.0097 | 0.39 | |
| 0.0520 | 1.95 | |
| -0.0445 | -0.86 |
Estimation Period:
Dec 30, 1992 to Mar 13, 2026
Dec 30, 1992 to Mar 13, 2026
News Impact Curve
Volatility Forecasts
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