Datamatics Global Services Asy. MEM Volatility Analysis
Volatility prediction for Tuesday, July 21st, 2026
1 Day
40.74%
decreased by 1.87%
1 Week
42.06%
decreased by 0.55%
1 Month
45.90%
increased by 3.29%
Analysis last updated: Tuesday, July 21, 2026 at 07:02 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 1, 2004 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 17 trading days, meaning a shock loses half its impact after approximately 17 days.
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4907 | 22.51*** |
α ARCH Response to squared shocks | 0.1329 | 27.68*** |
β GARCH Volatility persistence | 0.8271 | 174.57*** |
γ leverage Additional response to negative shocks | -0.0006 | -0.07 |
Persistence:
0.960
Half-life:
17 days
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