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V-Lab

Columbia Research Enhanced Small Cap ETF Asy. MEM Volatility Analysis

Volatility prediction for Tuesday, July 21st, 2026

1 Day

24.45%

decreased by 0.07%

1 Week

25.49%

increased by 0.97%

1 Month

28.92%

increased by 4.40%

Analysis last updated: Monday, July 20, 2026 at 09:47 PM UTC

Date Range:

from

to

6M ·

All

graph of Columbia Research Enhanced Small Cap ETF AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 11, 2025 to Jul 17, 2026

Model Insight

Volatility shocks decay with a half-life of 38 trading days, meaning a shock loses half its impact after approximately 38 days.

μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1484
1.60
α

ARCH

Response to squared shocks

0.0189
1.20
β

GARCH

Volatility persistence

0.8887
30.74***
γ

leverage

Additional response to negative shocks

0.1490
1.83*

Persistence:

0.982

Half-life:

38 days