V-Lab
Calamos Nasdaq Autocallable Income ETF GJR-GARCH Volatility Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Volatility prediction for Wednesday, August 12th, 2026
1 Day
12.14%
decreased by 0.14%
1 Week
12.33%
increased by 0.05%
1 Month
13.06%
increased by 0.78%
Analysis last updated: Tuesday, August 11, 2026 at 09:56 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 20, 2025 to Aug 7, 2026Model Insight
With persistence 1.000, volatility shocks have a half-life of 1386294 trading days (~5501.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0091 | 1.48 |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.9369 | 50.78*** |
γ leverage Additional response to negative shocks | 0.1262 | 2.93*** |
Persistence:
1.000
Half-life:
1386294 days
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