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V-Lab

Samsung Electronics Co Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

104.09%

decreased by 2.04%

1 Week

103.83%

decreased by 2.30%

1 Month

102.79%

decreased by 3.34%

Analysis last updated: Saturday, August 22, 2026 at 11:50 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Samsung Electronics Co Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1990 to Aug 21, 2026

Model Insight

With persistence 0.997, volatility shocks have a half-life of 219 trading days (~0.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 82% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0268
11.07***
α

ARCH

Response to squared shocks

0.0328
19.60***
β

GARCH

Volatility persistence

0.9506
715.30***
γ

leverage

Additional response to negative shocks

0.0268
7.39***

Persistence:

0.997

Half-life:

219 days