V-Lab
adidas AG GJR-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
37.09%
increased by 0.91%
1 Week
36.90%
increased by 0.72%
1 Month
36.23%
increased by 0.05%
Analysis last updated: Friday, September 11, 2026 at 07:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 17, 1995 to Sep 4, 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 | 0.0975 | 3.75*** |
| αARCH | 0.0066 | 1.16 |
| βGARCH | 0.9366 | 109.23*** |
| γleverage | 0.0672 | 3.37*** |
0.977
Persistence30d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0975 | 3.75*** |
α ARCH Response to squared shocks | 0.0066 | 1.16 |
β GARCH Volatility persistence | 0.9366 | 109.23*** |
γ leverage Additional response to negative shocks | 0.0672 | 3.37*** |
Persistence:
0.977
Half-life:
30 days
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