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V-Lab

S&P GSCI All Cattle Spot Index GJR-GARCH Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

17.47%

decreased by 0.41%

1 Week

17.42%

decreased by 0.46%

1 Month

17.24%

decreased by 0.64%

Analysis last updated: Saturday, September 19, 2026 at 12:02 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI All Cattle Spot Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 7, 2002 to Sep 18, 2026

Model Insight

This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

GJR-GARCH Model

Tap to view equation

Leverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
ωconst0.0124
4.28***
αARCH0.0132
2.04**
βGARCH0.9453
155.78***
γleverage0.0569
3.83***

0.987

Persistence

53d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0124
4.28***
α

ARCH

Response to squared shocks

0.0132
2.04**
β

GARCH

Volatility persistence

0.9453
155.78***
γ

leverage

Additional response to negative shocks

0.0569
3.83***

Persistence:

0.987

Half-life:

53 days