S&P 100 Index GAS-GARCH Student T Volatility Analysis
Volatility prediction for Friday, April 17th, 2026
1 Day
18.92%
decreased by 1.25%
1 Week
18.93%
decreased by 1.24%
1 Month
18.96%
decreased by 1.21%
Analysis last updated: Thursday, April 16, 2026 at 11:01 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 1.4988 | 5.11 | |
| 0.0858 | 41.50 | |
| 0.9919 | 586.55 | |
| 6.8258 | 8.45 |
Estimation Period:
Jan 1, 1990 to Apr 10, 2026
Jan 1, 1990 to Apr 10, 2026
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