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V-Lab
V-Lab

Obayashi Corp GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, September 24th, 2026

1 Day

29.10%

increased by 0.11%

1 Week

29.76%

increased by 0.77%

1 Month

31.77%

increased by 2.78%

Analysis last updated: Saturday, September 19, 2026 at 11:59 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Obayashi Corp GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1990 to Sep 18, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 89% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 89% more than positive returns
ParamValuet-stat
ωconst0.1948
6.31***
αARCH0.0797
5.22***
βGARCH0.8506
65.31***
γleverage0.0706
2.15**

0.966

Persistence

20d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1948
6.31***
α

ARCH

Response to squared shocks

0.0797
5.22***
β

GARCH

Volatility persistence

0.8506
65.31***
γ

leverage

Additional response to negative shocks

0.0706
2.15**

Persistence:

0.966

Half-life:

20 days