V-Lab
G-Shank Enterprise Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
48.54%
decreased by 0.48%
1 Week
48.44%
decreased by 0.58%
1 Month
48.07%
decreased by 0.95%
Analysis last updated: Sunday, August 23, 2026 at 02:02 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 7, 2001 to Aug 21, 2026Model Insight
With persistence 0.995, volatility shocks have a half-life of 130 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0311 | 13.54*** |
α ARCH Response to squared shocks | 0.0529 | 14.30*** |
β GARCH Volatility persistence | 0.9433 | 432.50*** |
γ leverage Additional response to negative shocks | -0.0029 | -0.47 |
Persistence:
0.995
Half-life:
130 days
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