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S&P Asia 50 CME GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 25th, 2026

1 Day

23.23%

decreased by 0.58%

1 Week

23.24%

decreased by 0.57%

1 Month

23.29%

decreased by 0.52%

Analysis last updated: Friday, September 25, 2026 at 09:00 PM UTC

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graph of S&P Asia 50 CME GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1998 to Sep 24, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 265% more than equivalent positive returns.

σ

GJR-GARCH Model

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Leverage: Negative returns increase volatility 265% more than positive returns
ParamValuet-stat
ωconst0.0232
5.08***
αARCH0.0294
3.38***
βGARCH0.9212
139.81***
γleverage0.0781
4.51***

0.990

Persistence

67d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0232
5.08***
α

ARCH

Response to squared shocks

0.0294
3.38***
β

GARCH

Volatility persistence

0.9212
139.81***
γ

leverage

Additional response to negative shocks

0.0781
4.51***

Persistence:

0.990

Half-life:

67 days