Invesco QQQ Trust Series 1 Asy. MEM Volatility Analysis
Volatility prediction for Tuesday, July 21st, 2026
1 Day
23.09%
decreased by 1.84%
1 Week
23.09%
decreased by 1.84%
1 Month
23.10%
decreased by 1.83%
Analysis last updated: Monday, July 20, 2026 at 09:25 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 10, 1999 to Jul 17, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 127% more than equivalent positive returns.
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0503 | 27.95*** |
α ARCH Response to squared shocks | 0.1290 | 30.57*** |
β GARCH Volatility persistence | 0.7653 | 212.28*** |
γ leverage Additional response to negative shocks | 0.1642 | 20.44*** |
Persistence:
0.976
Half-life:
29 days
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