V-Lab
Fidelity Blue Chip Growth ETF GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
25.01%
decreased by 0.37%
1 Week
24.99%
decreased by 0.39%
1 Month
24.91%
decreased by 0.47%
Analysis last updated: Friday, July 24, 2026 at 09:30 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 4, 2020 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 22 trading days, meaning a shock loses half its impact after approximately 22 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0744 | 8.22*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.9016 | 190.33*** |
γ leverage Additional response to negative shocks | 0.1350 | 11.21*** |
Persistence:
0.969
Half-life:
22 days
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