V-Lab
John Hancock FD ALL C C ETF GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
12.83%
decreased by 0.28%
1 Week
13.13%
increased by 0.02%
1 Month
14.00%
increased by 0.89%
Analysis last updated: Monday, August 24, 2026 at 09:40 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 2, 2023 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 15 trading days, meaning a shock loses half its impact after approximately 15 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0456 | 5.19*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8914 | 88.91*** |
γ leverage Additional response to negative shocks | 0.1273 | 4.97*** |
Persistence:
0.955
Half-life:
15 days
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