Skip to main content
V-Lab
V-Lab

S&P SmallCap 600 Index EGARCH Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

16.83%

decreased by 0.74%

1 Week

16.95%

decreased by 0.62%

1 Month

17.39%

decreased by 0.18%

Analysis last updated: Saturday, September 12, 2026 at 12:53 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P SmallCap 600 Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Sep 11, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 258% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 258% more than positive returns
ParamValuet-stat
ωconst0.0101
1.86*
αARCH0.1574
11.36***
βGARCH0.9775
299.20***
γleverage-0.0886
-8.30***

0.977

Persistence

30d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0101
1.86*
α

ARCH

Response to squared shocks

0.1574
11.36***
β

GARCH

Volatility persistence

0.9775
299.20***
γ

leverage

Additional response to negative shocks

-0.0886
-8.30***

Persistence:

0.977

Half-life:

30 days