PSI 20 Portuguese Stock Index GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, April 7th, 2026
1 Day
21.26%
decreased by 0.87%
1 Week
21.28%
decreased by 0.85%
1 Month
21.34%
decreased by 0.79%
Analysis last updated: Thursday, April 2, 2026 at 05:04 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 2.0617 | 5.48 | |
| 0.0963 | 60.50 | |
| 0.9946 | 1,019.01 | |
| 6.6480 | 12.99 |
Estimation Period:
Dec 30, 1992 to Apr 2, 2026
Dec 30, 1992 to Apr 2, 2026
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