V-Lab
RF Industries Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
72.77%
decreased by 1.19%
1 Week
71.71%
decreased by 2.25%
1 Month
69.00%
decreased by 4.96%
Analysis last updated: Friday, July 24, 2026 at 09:16 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Jul 24, 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 9 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.9420 | 3.40*** |
α ARCH Response to squared shocks | 0.1275 | 5.09*** |
β GARCH Volatility persistence | 0.7944 | 20.52*** |
Spline Coefficients
K=9
| γ1 | -0.0395 | -0.44 |
| γ2 | 0.0401 | 0.29 |
| γ3 | -0.0008 | -0.01 |
| γ4 | 0.0323 | 0.35 |
| γ5 | -0.1044 | -1.44 |
| γ6 | 0.2146 | 3.46*** |
| γ7 | -0.2725 | -3.55*** |
| γ8 | 0.2084 | 2.70*** |
| γ9 | -0.1052 | -2.06** |
Persistence:
0.922
Half-life:
9 days
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