Wilshire 5000 Total Market Index GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, April 21st, 2026
1 Day
16.84%
decreased by 1.12%
1 Week
16.87%
decreased by 1.09%
1 Month
16.97%
decreased by 0.99%
Analysis last updated: Tuesday, April 21, 2026 at 01:05 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 1.3182 | 5.90 | |
| 0.0876 | 40.89 | |
| 0.9907 | 584.50 | |
| 7.4916 | 6.95 |
Estimation Period:
Jan 1, 1990 to Jan 2, 2026
Jan 1, 1990 to Jan 2, 2026
Other Wilshire 5000 Total Market Index Analyses
Other GAS-GARCH Student T Analyses on Equity Indices