V-Lab
S&P SmallCap 600 Index EGARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
16.10%
decreased by 0.62%
1 Week
16.25%
decreased by 0.47%
1 Month
16.79%
increased by 0.07%
Analysis last updated: Friday, August 21, 2026 at 11:20 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Aug 21, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 260% more than equivalent positive returns.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0101 | 7.48*** |
α ARCH Response to squared shocks | 0.1573 | 45.44*** |
β GARCH Volatility persistence | 0.9774 | 1,194.92*** |
γ leverage Additional response to negative shocks | -0.0889 | -33.30*** |
Persistence:
0.977
Half-life:
30 days
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