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CBOE Goldman Sachs Volatility Index EGARCH Volatility Analysis

Volatility prediction for Wednesday, September 23rd, 2026

1 Day

80.30%

decreased by 2.81%

1 Week

81.12%

decreased by 1.99%

1 Month

83.92%

increased by 0.81%

Analysis last updated: Wednesday, September 23, 2026 at 11:40 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE Goldman Sachs Volatility Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 7, 2011 to Sep 18, 2026

Model Insight

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

EGARCH Model

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Inverse leverage: volatility responds almost entirely to positive returns
ParamValuet-stat
ωconst0.1081
1.45
αARCH0.0911
4.43***
βGARCH0.9699
67.65***
γleverage0.1254
5.16***

0.970

Persistence

23d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1081
1.45
α

ARCH

Response to squared shocks

0.0911
4.43***
β

GARCH

Volatility persistence

0.9699
67.65***
γ

leverage

Additional response to negative shocks

0.1254
5.16***

Persistence:

0.970

Half-life:

23 days