V-Lab
Dyaco International Inc GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 24th, 2026
1 Day
26.84%
decreased by 1.15%
1 Week
27.21%
decreased by 0.78%
1 Month
28.48%
increased by 0.49%
Analysis last updated: Friday, July 24, 2026 at 08:16 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 24, 2011 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 37 trading days, meaning a shock loses half its impact after approximately 37 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0936 | 14.81*** |
α ARCH Response to squared shocks | 0.1034 | 13.73*** |
β GARCH Volatility persistence | 0.8893 | 220.08*** |
γ leverage Additional response to negative shocks | -0.0227 | -1.93* |
Persistence:
0.981
Half-life:
37 days
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