Principal Focused Blue Chip ETF MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, July 21st, 2026
1 Day
19.26%
decreased by 0.83%
1 Week
19.28%
decreased by 0.81%
1 Month
21.41%
increased by 1.32%
Analysis last updated: Tuesday, July 21, 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 Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 50 trading days, meaning a shock loses half its impact after approximately 50 days.
σ
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.9730 | 43.36*** |
γ leverage Additional response to negative shocks | 0.0267 | 0.58 |
λ₁ tau intercept Baseline long-term coefficient | 0.6941 | 0.08 |
λ₂ forecast adj. Forecast performance sensitivity | 0.8770 | 0.11 |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.986
Half-life:
50 days
Other Principal Focused Blue Chip ETF Analyses
Other MF2-GARCH Analyses on ETFs