V-Lab
Hua Hong Grace Semiconductor Ltd EGARCH Volatility Analysis
Volatility prediction for Monday, August 17th, 2026
1 Day
83.65%
increased by 3.07%
1 Week
82.16%
increased by 1.58%
1 Month
78.10%
decreased by 2.48%
Analysis last updated: Saturday, August 15, 2026 at 07:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 7, 2023 to Aug 14, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 95% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1554 | 7.66*** |
α ARCH Response to squared shocks | 0.2242 | 8.62*** |
β GARCH Volatility persistence | 0.9475 | 144.79*** |
γ leverage Additional response to negative shocks | 0.0720 | 3.37*** |
Persistence:
0.948
Half-life:
13 days
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