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V-Lab

FTSE TWSE Taiwan 50 Index GJR-GARCH Volatility Analysis

Volatility prediction for Friday, August 14th, 2026

1 Day

35.28%

decreased by 1.37%

1 Week

34.90%

decreased by 1.75%

1 Month

33.48%

decreased by 3.17%

Analysis last updated: Friday, August 14, 2026 at 10:25 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of FTSE TWSE Taiwan 50 Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 15, 2003 to Jun 18, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 221% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0303
20.05***
α

ARCH

Response to squared shocks

0.0349
13.23***
β

GARCH

Volatility persistence

0.9093
368.29***
γ

leverage

Additional response to negative shocks

0.0772
13.35***

Persistence:

0.983

Half-life:

40 days