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V-Lab

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

Date Range:

from

to

6M ·

All

graph of Columbia Research Enhanced Small Cap ETF MEM

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 36 trading days, meaning a shock loses half its impact after approximately 36 days.

μ

MEM Model

Tap to view equation

ParameterValuet-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