Skip to main content
V-Lab
V-Lab

Russell Midcap Index MF2-GARCH Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

13.08%

decreased by 0.59%

1 Week

13.38%

decreased by 0.29%

1 Month

14.18%

increased by 0.51%

Analysis last updated: Friday, September 4, 2026 at 11:26 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Russell Midcap Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 1, 2004 to Aug 27, 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
mwindow81
αARCH0.0000
0.00
βGARCH0.8561
72.03***
γleverage0.1861
10.91***
λ₁tau intercept0.0518
2.07**
λ₂forecast adj.0.3302
4.06***
λ₃tau persistence0.6262
6.69***

0.949

Persistence

13d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

81
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.8561
72.03***
γ

leverage

Additional response to negative shocks

0.1861
10.91***
λ₁

tau intercept

Baseline long-term coefficient

0.0518
2.07**
λ₂

forecast adj.

Forecast performance sensitivity

0.3302
4.06***
λ₃

tau persistence

Long-term factor persistence

0.6262
6.69***

Persistence:

0.949

Half-life:

13 days