Columbia Research Enhanced Small Cap ETF MEM Volatility Analysis
Volatility prediction for Wednesday, July 22nd, 2026
1 Day
23.86%
decreased by 0.31%
1 Week
24.21%
increased by 0.04%
1 Month
25.42%
increased by 1.25%
Analysis last updated: Tuesday, July 21, 2026 at 09:49 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 11, 2025 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 36 trading days, meaning a shock loses half its impact after approximately 36 days.
μ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0779 | 0.74 |
α ARCH Response to squared shocks | 0.0511 | 2.46** |
β GARCH Volatility persistence | 0.9296 | 58.38*** |
Persistence:
0.981
Half-life:
36 days
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