V-Lab
Sam Holdings Corporation AGARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
20.31%
decreased by 0.72%
1 Week
22.24%
increased by 1.21%
1 Month
27.66%
increased by 6.63%
Analysis last updated: Wednesday, August 5, 2026 at 08:32 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 21, 2007 to Jul 31, 2026Model Insight
Volatility shocks decay with a half-life of 22 trading days, meaning a shock loses half its impact after approximately 22 days.
σ
AGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2174 | 21.58*** |
α ARCH Response to squared shocks | 0.1614 | 44.02*** |
β GARCH Volatility persistence | 0.8083 | 212.64*** |
γ leverage Additional response to negative shocks | 0.0573 | 1.08 |
Persistence:
0.970
Half-life:
22 days
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