V-Lab
Samsung Electronics Co Ltd Asy. MEM Volatility Analysis
Volatility prediction for Friday, August 14th, 2026
1 Day
99.60%
decreased by 6.17%
1 Week
98.96%
decreased by 6.81%
1 Month
96.48%
decreased by 9.29%
Analysis last updated: Friday, August 14, 2026 at 07:47 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Aug 7, 2026Model Insight
With persistence 0.992, volatility shocks have a half-life of 88 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Leverage: Negative returns increase volatility 20% more than positive returns
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0531 | 24.87*** |
α ARCH Response to squared shocks | 0.1176 | 40.43*** |
β GARCH Volatility persistence | 0.8629 | 424.66*** |
γ leverage Additional response to negative shocks | 0.0235 | 4.85*** |
Persistence:
0.992
Half-life:
88 days
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