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Akita Bank Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

43.54%

increased by 6.00%

1 Week

42.63%

increased by 5.09%

1 Month

39.75%

increased by 2.21%

Analysis last updated: Friday, September 11, 2026 at 08:24 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Akita Bank Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 4, 1990 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 15 trading days, meaning a shock loses half its impact after approximately 15 days. Returns follow a Student-t distribution with v = 4.98 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 15-day half-lifev = 4.98 · fat tails
ParamValuet-stat
ωconst3.8493
3.22***
αARCH0.0883
6.58***
βGARCH0.9556
66.19***
νDF4.9795
2.15**

0.956

Persistence

15d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

3.8493
3.22***
α

ARCH

Response to squared shocks

0.0883
6.58***
β

GARCH

Volatility persistence

0.9556
66.19***
ν

DF

Student-t tail thickness

4.9795
2.15**

Persistence:

0.956

Half-life:

15 days