Russell 1000 Growth Index Asy. MEM Volatility Analysis
Volatility prediction for Tuesday, October 13th, 2026
1 Day
13.37%
decreased by 0.48%
1 Week
13.62%
decreased by 0.23%
1 Month
14.48%
increased by 0.63%
Analysis last updated: Tuesday, October 13, 2026 at 09:10 AM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 12, 2000 to Oct 9, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 189% more than equivalent positive returns.
μ
AMEM Model
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Leverage: Negative returns increase volatility 189% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0285 | 7.04*** |
| αARCH | 0.0933 | 4.16*** |
| βGARCH | 0.7981 | 62.44*** |
| γleverage | 0.1762 | 5.36*** |
0.980
Persistence33d
Half-lifeμ
AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0285 | 7.04*** |
α ARCH Response to squared shocks | 0.0933 | 4.16*** |
β GARCH Volatility persistence | 0.7981 | 62.44*** |
γ leverage Additional response to negative shocks | 0.1762 | 5.36*** |
Persistence:
0.980
Half-life:
33 days
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