V-Lab
Sam Holdings Corporation MF2-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
16.71%
decreased by 0.74%
1 Week
18.01%
increased by 0.56%
1 Month
21.19%
increased by 3.74%
Analysis last updated: Wednesday, August 5, 2026 at 08:33 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 7 trading days, meaning a shock loses half its impact after approximately 7 days.
σ
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 76 | |
α ARCH Response to squared shocks | 0.1336 | 37.31*** |
β GARCH Volatility persistence | 0.7667 | 126.89*** |
γ leverage Additional response to negative shocks | 0.0044 | 0.79 |
λ₁ tau intercept Baseline long-term coefficient | 0.9460 | 4.05*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.8098 | 13.84*** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.902
Half-life:
7 days
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