V-Lab
G-Devs SA GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 24th, 2026
1 Day
78.49%
increased by 21.98%
1 Week
89.88%
increased by 33.37%
1 Month
118.04%
increased by 61.53%
Analysis last updated: Friday, July 24, 2026 at 08:02 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 4, 2024 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 16 trading days, meaning a shock loses half its impact after approximately 16 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 8.52*** |
α ARCH Response to squared shocks | 0.4620 | 5.51*** |
β GARCH Volatility persistence | 0.5109 | 18.46*** |
γ leverage Additional response to negative shocks | -0.0302 | -0.29 |
Persistence:
0.958
Half-life:
16 days
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