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V-Lab

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

Volatility prediction for Friday, August 7th, 2026

1 Day

18.35%

increased by 1.67%

1 Week

18.28%

increased by 1.60%

1 Month

18.03%

increased by 1.35%

Analysis last updated: Thursday, August 6, 2026 at 11:03 PM 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 Jul 31, 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0125
17.10***
α

ARCH

Response to squared shocks

0.0132
8.12***
β

GARCH

Volatility persistence

0.9449
618.39***
γ

leverage

Additional response to negative shocks

0.0575
15.39***

Persistence:

0.987

Half-life:

52 days