V-Lab
Helix Resources Limited GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
141.73%
increased by 17.68%
1 Week
141.10%
increased by 17.05%
1 Month
138.91%
increased by 14.86%
Analysis last updated: Wednesday, August 5, 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 Jul 31, 2026Model Insight
Volatility shocks decay with a half-life of 33 trading days, meaning a shock loses half its impact after approximately 33 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2904 | 9.35*** |
α ARCH Response to squared shocks | 0.0595 | 11.08*** |
β GARCH Volatility persistence | 0.9168 | 240.94*** |
γ leverage Additional response to negative shocks | 0.0061 | 0.59 |
Persistence:
0.979
Half-life:
33 days
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