V-Lab
Principal Focused Blue Chip ETF MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
14.41%
decreased by 1.52%
1 Week
17.81%
increased by 1.88%
1 Month
22.29%
increased by 6.36%
Analysis last updated: Saturday, September 19, 2026 at 02:15 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 13, 2023 to Sep 18, 2026Model Insight
Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days.
σ
MF2-GARCH Model
Tap to view equation
Shock decay: Shocks decay with a 2-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.3675 | 1.98** |
| βGARCH | 0.3249 | 2.39** |
| γleverage | -0.0720 | -0.36 |
| λ₁tau intercept | 0.2997 | 1.51 |
| λ₂forecast adj. | 0.5472 | 1.66* |
| λ₃tau persistence | 0.4200 | 1.54 |
0.656
Persistence2d
Half-lifeσ
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.3675 | 1.98** |
β GARCH Volatility persistence | 0.3249 | 2.39** |
γ leverage Additional response to negative shocks | -0.0720 | -0.36 |
λ₁ tau intercept Baseline long-term coefficient | 0.2997 | 1.51 |
λ₂ forecast adj. Forecast performance sensitivity | 0.5472 | 1.66* |
λ₃ tau persistence Long-term factor persistence | 0.4200 | 1.54 |
Persistence:
0.656
Half-life:
2 days
Other Principal Focused Blue Chip ETF Analyses
Other MF2-GARCH Analyses on ETFs