V-Lab
CME Live Cattle Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
17.74%
decreased by 1.37%
1 Week
18.64%
decreased by 0.47%
1 Month
19.20%
increased by 0.09%
Analysis last updated: Saturday, September 19, 2026 at 04:05 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 1, 2001 to Sep 18, 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 1 trading day.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.4766 | 5.04*** |
| αARCH | 0.1519 | 5.17*** |
| βGARCH | 0.4462 | 6.33*** |
Spline Coefficients
K=9
| γ1 | -0.2969 | -4.08*** |
| γ2 | 0.3419 | 3.09*** |
| γ3 | -0.0323 | -0.43 |
| γ4 | -0.0543 | -0.92 |
| γ5 | 0.1569 | 2.60*** |
| γ6 | -0.2215 | -3.15*** |
| γ7 | 0.0791 | 1.02 |
| γ8 | 0.1278 | 1.66* |
| γ9 | -0.1472 | -2.72*** |
0.598
Persistence1d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4766 | 5.04*** |
α ARCH Response to squared shocks | 0.1519 | 5.17*** |
β GARCH Volatility persistence | 0.4462 | 6.33*** |
Spline Coefficients
K=9
| γ1 | -0.2969 | -4.08*** |
| γ2 | 0.3419 | 3.09*** |
| γ3 | -0.0323 | -0.43 |
| γ4 | -0.0543 | -0.92 |
| γ5 | 0.1569 | 2.60*** |
| γ6 | -0.2215 | -3.15*** |
| γ7 | 0.0791 | 1.02 |
| γ8 | 0.1278 | 1.66* |
| γ9 | -0.1472 | -2.72*** |
Persistence:
0.598
Half-life:
1 days
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