Skip to main content
V-Lab
V-Lab

S&P GSCI Livestock Spot Index GAS-GARCH Student T Volatility Analysis

Volatility prediction for Thursday, October 8th, 2026

1 Day

14.07%

decreased by 0.05%

1 Week

14.08%

decreased by 0.04%

1 Month

14.10%

decreased by 0.02%

Analysis last updated: Wednesday, October 7, 2026 at 11:06 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

10/07/2024

to

10/07/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI Livestock Spot 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 Oct 2, 2026

Model Insight

Volatility shocks decay with a half-life of 41 trading days, meaning a shock loses half its impact after approximately 41 days. Returns follow a Student-t distribution with v = 14.07 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 41-day half-lifev = 14.07 · fat tails
ParamValuet-stat
ωconst0.8038
5.49***
αARCH0.0474
6.58***
βGARCH0.9834
213.37***
νDF14.0673
0.54

0.983

Persistence

41d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8038
5.49***
α

ARCH

Response to squared shocks

0.0474
6.58***
β

GARCH

Volatility persistence

0.9834
213.37***
ν

DF

Student-t tail thickness

14.0673
0.54

Persistence:

0.983

Half-life:

41 days