V-Lab
Saudi Industrial Export Co MEM Volatility Analysis
Volatility prediction for Sunday, July 26th, 2026
1 Day
33.55%
decreased by 2.00%
1 Week
34.66%
decreased by 0.89%
1 Month
38.54%
increased by 2.99%
Analysis last updated: Friday, July 24, 2026 at 08:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 14, 2005 to Jul 23, 2026Model Insight
With persistence 0.991, volatility shocks have a half-life of 74 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 | 0.1929 | 6.84*** |
α ARCH Response to squared shocks | 0.1792 | 36.55*** |
β GARCH Volatility persistence | 0.8115 | 113.81*** |
Persistence:
0.991
Half-life:
74 days
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