V-Lab
Russell 1000 Growth Index MF2-GARCH Volatility Analysis
Volatility prediction for Monday, August 17th, 2026
1 Day
22.84%
decreased by 1.28%
1 Week
22.74%
decreased by 1.38%
1 Month
22.60%
decreased by 1.52%
Analysis last updated: Saturday, August 15, 2026 at 12:08 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 12, 2000 to Aug 14, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 61 | |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8485 | 244.26*** |
γ leverage Additional response to negative shocks | 0.1926 | 45.54*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0119 | 6.36*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0723 | 7.38*** |
λ₃ tau persistence Long-term factor persistence | 0.9182 | 84.96*** |
Persistence:
0.945
Half-life:
12 days
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