V-Lab
Sansteel Minguang Co Ltd Fujian GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 17th, 2026
1 Day
32.21%
decreased by 0.71%
1 Week
32.67%
decreased by 0.25%
1 Month
34.32%
increased by 1.40%
Analysis last updated: Saturday, August 15, 2026 at 07:23 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 26, 2007 to Aug 14, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 75% 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
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1046 | 12.51*** |
α ARCH Response to squared shocks | 0.1014 | 17.87*** |
β GARCH Volatility persistence | 0.9094 | 344.72*** |
γ leverage Additional response to negative shocks | -0.0436 | -5.80*** |
Persistence:
0.989
Half-life:
63 days
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