V-Lab
Samsung Electronics Co Ltd MEM Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
72.16%
decreased by 0.45%
1 Week
71.70%
decreased by 0.91%
1 Month
69.95%
decreased by 2.66%
Analysis last updated: Friday, September 4, 2026 at 07:59 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Aug 28, 2026Model Insight
With persistence 0.991, volatility shocks have a half-life of 77 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0542 | 1.99** |
α ARCH Response to squared shocks | 0.1288 | 12.46*** |
β GARCH Volatility persistence | 0.8622 | 105.72*** |
Persistence:
0.991
Half-life:
77 days
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