S&P 500 Equal Weight Index (EWI) EGARCH Volatility Analysis
Volatility prediction for Tuesday, May 12th, 2026
1 Day
11.17%
decreased by 0.41%
1 Week
11.39%
decreased by 0.19%
1 Month
12.22%
increased by 0.64%
Analysis last updated: Monday, May 11, 2026 at 11:02 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0051 | 2.83 | |
| 0.1495 | 43.02 | |
| 0.9790 | 1,078.24 | |
| -0.1054 | -33.80 |
Estimation Period:
Jan 1, 1990 to May 8, 2026
Jan 1, 1990 to May 8, 2026
Other S&P 500 Equal Weight Index (EWI) Analyses
Other EGARCH Analyses on Equity Indices