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V-Lab

Tire Company Debica S A GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

12.46%

decreased by 0.03%

1 Week

13.30%

increased by 0.81%

1 Month

16.09%

increased by 3.60%

Analysis last updated: Sunday, July 26, 2026 at 04:23 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Tire Company Debica S A GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 10, 1995 to Jul 24, 2026

Model Insight

With persistence 0.993, volatility shocks have a half-life of 100 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.93 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

6.8368
4.74***
α

ARCH

Response to squared shocks

0.0802
90.76***
β

GARCH

Volatility persistence

0.9931
709.36***
ν

DF

Student-t tail thickness

2.9348
72.22***

Persistence:

0.993

Half-life:

100 days