V-Lab
Helix Resources Limited GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
116.34%
decreased by 3.64%
1 Week
116.72%
decreased by 3.26%
1 Month
118.03%
decreased by 1.95%
Analysis last updated: Tuesday, August 25, 2026 at 05:51 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 34 trading days, meaning a shock loses half its impact after approximately 34 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2629 | 9.20*** |
α ARCH Response to squared shocks | 0.0581 | 11.10*** |
β GARCH Volatility persistence | 0.9182 | 248.89*** |
γ leverage Additional response to negative shocks | 0.0071 | 0.70 |
Persistence:
0.980
Half-life:
34 days
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