Calamos S&P 500 Stru ETF JAN MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, October 20th, 2026
1 Day
1.58%
decreased by 0.05%
1 Week
1.68%
increased by 0.05%
1 Month
1.96%
increased by 0.33%
Analysis last updated: Tuesday, October 20, 2026 at 02:24 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 2025 to Oct 16, 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 | 126 | |
| αARCH | 0.0000 | 0.00 |
| βGARCH | 0.8487 | 39.63*** |
| γleverage | 0.2432 | 9.82*** |
| λ₁tau intercept | 0.0173 | 0.16 |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.4561 | 0.13 |
0.970
Persistence23d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 126 | |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8487 | 39.63*** |
γ leverage Additional response to negative shocks | 0.2432 | 9.82*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0173 | 0.16 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.4561 | 0.13 |
Persistence:
0.970
Half-life:
23 days
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