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V-Lab

Tire Company Debica S A MF2-GARCH Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Monday, July 27th, 2026

1 Day

0.00%

decreased by 2.90%

1 Week

0.00%

decreased by 2.90%

1 Month

0.00%

decreased by 2.90%

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

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Tire Company Debica S A MF2-GARCH

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
Boundary Parameters

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): volatility shocks do not decay and the long-run variance is undefined, so long-horizon forecasts should be treated with caution.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

81
α

ARCH

Response to squared shocks

0.7500
β

GARCH

Volatility persistence

0.0000
γ

leverage

Additional response to negative shocks

0.5000
λ₁

tau intercept

Baseline long-term coefficient

2.7157
λ₂

forecast adj.

Forecast performance sensitivity

0.0000
λ₃

tau persistence

Long-term factor persistence

0.0000

Persistence:

1.000

Half-life:

-