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V-Lab

CME Live Cattle APARCH Volatility Analysis

Volatility prediction for Wednesday, September 9th, 2026

1 Day

20.34%

increased by 0.29%

1 Week

20.41%

increased by 0.36%

1 Month

20.68%

increased by 0.63%

Analysis last updated: Wednesday, September 9, 2026 at 02:04 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CME Live Cattle APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 1, 2001 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 48 trading days, meaning a shock loses half its impact after approximately 48 days. The volatility power δ = 0.90 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

σ

APARCH Model

Tap to view equation

Shock decay: Shocks decay with a 48-day half-lifeδ = 0.90 · sub-quadratic power
ParamValuet-stat
ωconst0.0200
3.02***
αARCH0.0344
2.94***
βGARCH0.9584
71.35***
γleverage0.2457
0.69
δpower0.8999
1.64

0.986

Persistence

48d

Half-life
σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0200
3.02***
α

ARCH

Response to squared shocks

0.0344
2.94***
β

GARCH

Volatility persistence

0.9584
71.35***
γ

leverage

Additional response to negative shocks

0.2457
0.69
δ

power

Transformation power

0.8999
1.64

Persistence:

0.986

Half-life:

48 days