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V-Lab

News Corp GJR-GARCH Volatility Analysis

Volatility prediction for Wednesday, September 16th, 2026

1 Day

27.25%

decreased by 2.20%

1 Week

27.51%

decreased by 1.94%

1 Month

27.98%

decreased by 1.47%

Analysis last updated: Wednesday, September 16, 2026 at 02:36 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of News Corp GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 19, 2013 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 5-day half-life
ParamValuet-stat
ωconst0.4172
2.23**
αARCH0.1084
2.13**
βGARCH0.7262
11.08***
γleverage0.0692
0.59

0.869

Persistence

5d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.4172
2.23**
α

ARCH

Response to squared shocks

0.1084
2.13**
β

GARCH

Volatility persistence

0.7262
11.08***
γ

leverage

Additional response to negative shocks

0.0692
0.59

Persistence:

0.869

Half-life:

5 days