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Matsuda Sangyo Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

73.59%

increased by 2.56%

1 Week

73.38%

increased by 2.35%

1 Month

72.57%

increased by 1.54%

Analysis last updated: Friday, September 11, 2026 at 08:32 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Matsuda Sangyo Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 28, 1995 to Sep 4, 2026

Model Insight

With persistence 0.994, volatility shocks have a half-life of 121 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 3.37 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.994, shock half-life ~121 daysv = 3.37 · fat tails
ParamValuet-stat
ωconst10.6963
0.93
αARCH0.0684
17.20***
βGARCH0.9943
170.02***
νDF3.3719
9.01***

0.994

Persistence

121d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

10.6963
0.93
α

ARCH

Response to squared shocks

0.0684
17.20***
β

GARCH

Volatility persistence

0.9943
170.02***
ν

DF

Student-t tail thickness

3.3719
9.01***

Persistence:

0.994

Half-life:

121 days