V-Lab
International Business Machines Corp MEM Volatility Analysis
Volatility prediction for Tuesday, August 11th, 2026
1 Day
45.99%
decreased by 1.29%
1 Week
45.66%
decreased by 1.62%
1 Month
44.42%
decreased by 2.86%
Analysis last updated: Monday, August 10, 2026 at 09:46 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 7, 2026Model Insight
Volatility shocks decay with a half-life of 50 trading days, meaning a shock loses half its impact after approximately 50 days.
μ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0553 | 8.29*** |
α ARCH Response to squared shocks | 0.2048 | 51.18*** |
β GARCH Volatility persistence | 0.7813 | 320.33*** |
Persistence:
0.986
Half-life:
50 days
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