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V-Lab
V-Lab

S&P GSCI All Cattle Spot Index Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Wednesday, September 9th, 2026

1 Day

16.69%

increased by 0.83%

1 Week

16.66%

increased by 0.80%

1 Month

16.56%

increased by 0.70%

Analysis last updated: Tuesday, September 8, 2026 at 11:30 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI All Cattle Spot Index S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 7, 2002 to Sep 8, 2026

Model Insight

With persistence 0.990, volatility shocks have a half-life of 69 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

High persistence: persistence 0.990, shock half-life ~69 days
ParamValuet-stat
ωconst1.0305
9.37***
αARCH0.0462
8.02***
βGARCH0.9439
147.99***
γi Spline Coefficients
K=1
γ10.0001
0.36

0.990

Persistence

69d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0305
9.37***
α

ARCH

Response to squared shocks

0.0462
8.02***
β

GARCH

Volatility persistence

0.9439
147.99***
γi Spline Coefficients
K=1
γ10.0001
0.36

Persistence:

0.990

Half-life:

69 days