PSI 20 Portuguese Stock Index GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, April 27th, 2026
1 Day
13.47%
increased by 0.69%
1 Week
13.60%
increased by 0.82%
1 Month
14.11%
increased by 1.33%
Analysis last updated: Friday, April 24, 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 | |
|---|---|---|
| 2.0296 | 5.45 | |
| 0.0963 | 59.91 | |
| 0.9945 | 993.47 | |
| 6.6440 | 12.87 |
Estimation Period:
Dec 30, 1992 to Apr 24, 2026
Dec 30, 1992 to Apr 24, 2026
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