V-Lab
Russell 1000 Value Index GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, October 6th, 2026
1 Day
10.46%
decreased by 0.33%
1 Week
10.78%
decreased by 0.01%
1 Month
11.82%
increased by 1.03%
Analysis last updated: Tuesday, October 6, 2026 at 12:08 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 2, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
GJR-GARCH Model
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0236 | 4.79*** |
| αARCH | 0.0034 | 0.34 |
| βGARCH | 0.8873 | 98.63*** |
| γleverage | 0.1735 | 7.67*** |
0.977
Persistence30d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0236 | 4.79*** |
α ARCH Response to squared shocks | 0.0034 | 0.34 |
β GARCH Volatility persistence | 0.8873 | 98.63*** |
γ leverage Additional response to negative shocks | 0.1735 | 7.67*** |
Persistence:
0.977
Half-life:
30 days
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