V-Lab
Addcn Technology Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
14.96%
decreased by 0.26%
1 Week
15.15%
decreased by 0.07%
1 Month
15.90%
increased by 0.68%
Analysis last updated: Sunday, July 26, 2026 at 06:29 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 3, 2012 to Jul 24, 2026Model Insight
With persistence 0.999, volatility shocks have a half-life of 1281 trading days (~5.1 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 | 0.0120 | 5.87*** |
α ARCH Response to squared shocks | 0.0564 | 11.22*** |
β GARCH Volatility persistence | 0.9466 | 310.15*** |
γ leverage Additional response to negative shocks | -0.0070 | -0.98 |
Persistence:
0.999
Half-life:
1281 days
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