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Samsung Electronics Co Ltd AGARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

79.19%

decreased by 2.19%

1 Week

78.92%

decreased by 2.46%

1 Month

77.83%

decreased by 3.55%

Analysis last updated: Friday, September 11, 2026 at 08:31 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Samsung Electronics Co Ltd AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1990 to Sep 4, 2026

Model Insight

With persistence 0.995, volatility shocks have a half-life of 145 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: negative returns raise volatility more

σ

AGARCH Model

Tap to view equation

High persistence: persistence 0.995, shock half-life ~145 daysAsymmetry: negative returns raise volatility more
ParamValuet-stat
ωconst0.0258
2.81***
αARCH0.0494
9.72***
βGARCH0.9459
176.83***
γleverage0.3290
2.38**

0.995

Persistence

145d

Half-life
σ

AGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0258
2.81***
α

ARCH

Response to squared shocks

0.0494
9.72***
β

GARCH

Volatility persistence

0.9459
176.83***
γ

leverage

Additional response to negative shocks

0.3290
2.38**

Persistence:

0.995

Half-life:

145 days