V-Lab
Sui Southern Gas Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
38.75%
increased by 0.89%
1 Week
39.48%
increased by 1.62%
1 Month
41.49%
increased by 3.63%
Analysis last updated: Tuesday, August 25, 2026 at 07:56 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 3, 1993 to Aug 24, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 45% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4420 | 27.10*** |
α ARCH Response to squared shocks | 0.1083 | 19.77*** |
β GARCH Volatility persistence | 0.8134 | 177.83*** |
γ leverage Additional response to negative shocks | 0.0486 | 4.49*** |
Persistence:
0.946
Half-life:
12 days
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