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V-Lab
V-Lab

Inpex Corp GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, October 22nd, 2026

1 Day

31.45%

decreased by 1.05%

1 Week

31.86%

decreased by 0.64%

1 Month

33.25%

increased by 0.75%

Analysis last updated: Thursday, October 22, 2026 at 07:23 PM UTC

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Date Range:

from

10/21/2024

to

10/21/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Inpex Corp GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 17, 2004 to Oct 16, 2026

Model Insight

Volatility shocks decay with a half-life of 29 trading days, meaning a shock loses half its impact after approximately 29 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 29-day half-life
ParamValuet-stat
ωconst0.1477
3.61***
αARCH0.0600
4.08***
βGARCH0.8913
48.73***
γleverage0.0495
1.64

0.976

Persistence

29d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1477
3.61***
α

ARCH

Response to squared shocks

0.0600
4.08***
β

GARCH

Volatility persistence

0.8913
48.73***
γ

leverage

Additional response to negative shocks

0.0495
1.64

Persistence:

0.976

Half-life:

29 days