V-Lab
Columbia Research Enhanced Small Cap ETF GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
15.37%
decreased by 0.27%
1 Week
15.72%
increased by 0.08%
1 Month
16.72%
increased by 1.08%
Analysis last updated: Saturday, July 25, 2026 at 02:27 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 11, 2025 to Jul 24, 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 | 0.0656 | 2.34** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8992 | 37.35*** |
γ leverage Additional response to negative shocks | 0.1099 | 2.31** |
Persistence:
0.954
Half-life:
15 days
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