V-Lab
Helix Resources Limited Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, August 10th, 2026
1 Day
189.75%
decreased by 7.22%
1 Week
198.60%
increased by 1.63%
1 Month
217.11%
increased by 20.14%
Analysis last updated: Saturday, August 8, 2026 at 06:03 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 7, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 7 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9346 | 5.93*** |
α ARCH Response to squared shocks | 0.1139 | 6.71*** |
β GARCH Volatility persistence | 0.7906 | 24.52*** |
Spline Coefficients
K=7
| γ1 | 0.0443 | 1.28 |
| γ2 | -0.0892 | -1.93* |
| γ3 | 0.0972 | 3.18*** |
| γ4 | -0.0795 | -2.18** |
| γ5 | 0.0126 | 0.30 |
| γ6 | 0.0746 | 1.95* |
| γ7 | -0.1031 | -3.86*** |
Persistence:
0.905
Half-life:
7 days
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