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V-Lab

Yamada Consulting Group Co GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, August 5th, 2026

1 Day

32.32%

increased by 0.95%

1 Week

34.14%

increased by 2.77%

1 Month

40.16%

increased by 8.79%

Analysis last updated: Wednesday, August 5, 2026 at 07:22 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Yamada Consulting Group Co GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 23, 2001 to Jul 31, 2026

Model Insight

Volatility shocks decay with a half-life of 56 trading days, meaning a shock loses half its impact after approximately 56 days. Returns follow a Student-t distribution with v = 2.88 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

23.9422
2.88***
α

ARCH

Response to squared shocks

0.1262
59.79***
β

GARCH

Volatility persistence

0.9877
234.27***
ν

DF

Student-t tail thickness

2.8755
45.96***

Persistence:

0.988

Half-life:

56 days