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V-Lab

NASDAQ Composite Index EGARCH Volatility Analysis

Volatility prediction for Monday, July 20th, 2026

1 Day

23.75%

increased by 1.49%

1 Week

23.67%

increased by 1.41%

1 Month

23.40%

increased by 1.14%

Analysis last updated: Saturday, July 18, 2026 at 12:04 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of NASDAQ Composite Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Jul 17, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 245% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0162
10.13***
α

ARCH

Response to squared shocks

0.1709
46.75***
β

GARCH

Volatility persistence

0.9756
1,113.71***
γ

leverage

Additional response to negative shocks

-0.0941
-26.32***

Persistence:

0.976

Half-life:

28 days