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V-Lab

Deutsche Borse TecDAX Total Return Selection Index GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, August 20th, 2026

1 Day

16.11%

decreased by 0.67%

1 Week

16.48%

decreased by 0.30%

1 Month

17.77%

increased by 0.99%

Analysis last updated: Wednesday, August 19, 2026 at 07:54 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Deutsche Borse TecDAX Total Return Selection Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1998 to Aug 14, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 149% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0369
23.93***
α

ARCH

Response to squared shocks

0.0578
18.10***
β

GARCH

Volatility persistence

0.8866
433.55***
γ

leverage

Additional response to negative shocks

0.0862
13.99***

Persistence:

0.988

Half-life:

55 days