V-Lab
Invesco QQQ Trust Series 1 MF2-GARCH Volatility Analysis
Volatility prediction for Wednesday, September 30th, 2026
1 Day
16.78%
decreased by 0.49%
1 Week
17.41%
increased by 0.14%
1 Month
19.13%
increased by 1.86%
Analysis last updated: Tuesday, September 29, 2026 at 09:27 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 10, 1999 to Sep 25, 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
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| mwindow | 31 | |
| αARCH | 0.0000 | 0.00 |
| βGARCH | 0.8394 | 55.64*** |
| γleverage | 0.1838 | 11.51*** |
| λ₁tau intercept | 0.0092 | 1.65* |
| λ₂forecast adj. | 0.0414 | 2.46** |
| λ₃tau persistence | 0.9535 | 50.66*** |
0.931
Persistence10d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 31 | |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8394 | 55.64*** |
γ leverage Additional response to negative shocks | 0.1838 | 11.51*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0092 | 1.65* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0414 | 2.46** |
λ₃ tau persistence Long-term factor persistence | 0.9535 | 50.66*** |
Persistence:
0.931
Half-life:
10 days
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