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Softbank Group Corp GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

68.99%

decreased by 2.68%

1 Week

68.66%

decreased by 3.01%

1 Month

67.42%

decreased by 4.25%

Analysis last updated: Friday, September 11, 2026 at 06:56 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Softbank Group Corp GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 16, 2000 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 49 trading days, meaning a shock loses half its impact after approximately 49 days.

σ

GJR-GARCH Model

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Shock decay: Shocks decay with a 49-day half-life
ParamValuet-stat
ωconst0.1740
3.36***
αARCH0.0779
4.71***
βGARCH0.8897
67.83***
γleverage0.0365
1.20

0.986

Persistence

49d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1740
3.36***
α

ARCH

Response to squared shocks

0.0779
4.71***
β

GARCH

Volatility persistence

0.8897
67.83***
γ

leverage

Additional response to negative shocks

0.0365
1.20

Persistence:

0.986

Half-life:

49 days