V-Lab
Lianhe Sowell International Group Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
233.16%
increased by 5.13%
1 Week
232.03%
increased by 4.00%
1 Month
228.23%
increased by 0.20%
Analysis last updated: Tuesday, August 25, 2026 at 09:26 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 3, 2025 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 24 trading days, meaning a shock loses half its impact after approximately 24 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 1.35 |
α ARCH Response to squared shocks | 0.0120 | 0.85 |
β GARCH Volatility persistence | 0.9658 | 30.94*** |
γ leverage Additional response to negative shocks | -0.0120 | -1.09 |
Persistence:
0.972
Half-life:
24 days
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