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SEI Select Small CAP ETF MF2-GARCH Volatility Analysis

Volatility prediction for Tuesday, October 20th, 2026

1 Day

16.54%

decreased by 0.58%

1 Week

16.46%

decreased by 0.66%

1 Month

16.69%

decreased by 0.43%

Analysis last updated: Monday, October 19, 2026 at 09:26 PM UTC

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Date Range:

from

10/19/2024

to

10/19/2026

6M ·

1Y ·

2Y ·

All

graph of SEI Select Small CAP ETF MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 10, 2024 to Oct 16, 2026

Model Insight

This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

MF2-GARCH Model

Tap to view equation

Leverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
mwindow26
αARCH0.0000
0.00
βGARCH0.8644
33.40***
γleverage0.1068
4.42***
λ₁tau intercept0.0599
1.21
λ₂forecast adj.0.0584
2.11**
λ₃tau persistence0.8944
16.81***

0.918

Persistence

8d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

26
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.8644
33.40***
γ

leverage

Additional response to negative shocks

0.1068
4.42***
λ₁

tau intercept

Baseline long-term coefficient

0.0599
1.21
λ₂

forecast adj.

Forecast performance sensitivity

0.0584
2.11**
λ₃

tau persistence

Long-term factor persistence

0.8944
16.81***

Persistence:

0.918

Half-life:

8 days