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V-Lab

Budapest Stock Exchange Budapest Stock Index GJR-GARCH Volatility Analysis

Volatility prediction for Wednesday, August 19th, 2026

1 Day

14.49%

increased by 1.08%

1 Week

15.35%

increased by 1.94%

1 Month

17.92%

increased by 4.51%

Analysis last updated: Wednesday, August 19, 2026 at 05:42 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Budapest Stock Exchange Budapest Stock Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1991 to Aug 14, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 76% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0766
21.31***
α

ARCH

Response to squared shocks

0.1085
26.11***
β

GARCH

Volatility persistence

0.8213
169.07***
γ

leverage

Additional response to negative shocks

0.0827
7.15***

Persistence:

0.971

Half-life:

24 days