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V-Lab

S&P GSCI Live Cattle Index GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

14.73%

decreased by 0.47%

1 Week

14.73%

decreased by 0.47%

1 Month

14.72%

decreased by 0.48%

Analysis last updated: Friday, August 21, 2026 at 11:22 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI Live Cattle Index GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 63 trading days, meaning a shock loses half its impact after approximately 63 days. Returns follow a Student-t distribution with v = 9.07 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8583
11.69***
α

ARCH

Response to squared shocks

0.0460
25.69***
β

GARCH

Volatility persistence

0.9890
936.54***
ν

DF

Student-t tail thickness

9.0659
3.93***

Persistence:

0.989

Half-life:

63 days