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V-Lab

Kyoritsu Maintenance Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

29.79%

decreased by 1.45%

1 Week

30.49%

decreased by 0.75%

1 Month

30.90%

decreased by 0.34%

Analysis last updated: Sunday, July 26, 2026 at 12:17 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Kyoritsu Maintenance Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 20, 2021 to Jul 24, 2026

Model Insight

Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day. Returns follow a Student-t distribution with v = 5.98 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

3.8230
18.47***
α

ARCH

Response to squared shocks

0.1558
5.45***
β

GARCH

Volatility persistence

0.5753
23.80***
ν

DF

Student-t tail thickness

5.9787
1.69*

Persistence:

0.575

Half-life:

1 days