Columbia Corporate Bond ETF GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 23rd, 2026
1 Day
4.73%
decreased by 0.15%
1 Week
4.71%
decreased by 0.17%
1 Month
4.68%
decreased by 0.20%
Analysis last updated: Friday, October 23, 2026 at 02:22 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 11, 2025 to Oct 16, 2026Model Insight
Volatility shocks decay with a half-life of 14 trading days, meaning a shock loses half its impact after approximately 14 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 14-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0042 | 1.17 |
| αARCH | 0.0000 | 0.00 |
| βGARCH | 0.8930 | 14.47*** |
| γleverage | 0.1149 | 0.77 |
0.950
Persistence14d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0042 | 1.17 |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8930 | 14.47*** |
γ leverage Additional response to negative shocks | 0.1149 | 0.77 |
Persistence:
0.950
Half-life:
14 days
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