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V-Lab

Wawel Sa GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

18.32%

decreased by 0.12%

1 Week

21.56%

increased by 3.12%

1 Month

28.03%

increased by 9.59%

Analysis last updated: Sunday, August 23, 2026 at 01:51 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Wawel Sa GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 30, 1998 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 9 trading days, meaning a shock loses half its impact after approximately 9 days.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.3795
24.96***
α

ARCH

Response to squared shocks

0.2045
22.60***
β

GARCH

Volatility persistence

0.7055
99.24***
γ

leverage

Additional response to negative shocks

0.0260
1.79*

Persistence:

0.923

Half-life:

9 days