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V-Lab

NASDAQ 100 EGARCH Volatility Analysis

Volatility prediction for Thursday, September 17th, 2026

1 Day

17.08%

decreased by 1.02%

1 Week

17.38%

decreased by 0.72%

1 Month

18.51%

increased by 0.41%

Analysis last updated: Thursday, September 17, 2026 at 03:45 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of NASDAQ 100 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 251% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 251% more than positive returns
ParamValuet-stat
ωconst0.0213
2.94***
αARCH0.1676
12.28***
βGARCH0.9778
268.54***
γleverage-0.0933
-6.45***

0.978

Persistence

31d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0213
2.94***
α

ARCH

Response to squared shocks

0.1676
12.28***
β

GARCH

Volatility persistence

0.9778
268.54***
γ

leverage

Additional response to negative shocks

-0.0933
-6.45***

Persistence:

0.978

Half-life:

31 days