S&P 500 Index EGARCH Volatility Analysis
Volatility prediction for Wednesday, April 22nd, 2026
1 Day
12.78%
increased by 0.84%
1 Week
12.99%
increased by 1.05%
1 Month
13.72%
increased by 1.78%
Analysis last updated: Wednesday, April 22, 2026 at 04:24 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0041 | 1.45 | |
| 0.1495 | 35.59 | |
| 0.9717 | 689.12 | |
| -0.1291 | -34.04 |
Estimation Period:
Jan 1, 1990 to Apr 17, 2026
Jan 1, 1990 to Apr 17, 2026
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