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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

Date Range:

from

to

6M ·

All

graph of Calamos Nasdaq Autocallable Income ETF GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 20, 2025 to Aug 7, 2026

Model 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

ParameterValuet-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