V-Lab
Arcadyan Technology Corp GJR-GARCH Volatility Analysis
Volatility prediction for Friday, August 14th, 2026
1 Day
40.56%
decreased by 0.81%
1 Week
40.41%
decreased by 0.96%
1 Month
39.91%
decreased by 1.46%
Analysis last updated: Friday, August 14, 2026 at 08:31 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 30, 2007 to Aug 7, 2026Model Insight
Volatility shocks decay with a half-life of 21 trading days, meaning a shock loses half its impact after approximately 21 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1898 | 12.75*** |
α ARCH Response to squared shocks | 0.0491 | 12.63*** |
β GARCH Volatility persistence | 0.9161 | 235.21*** |
γ leverage Additional response to negative shocks | 0.0037 | 0.57 |
Persistence:
0.967
Half-life:
21 days
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