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V-Lab
V-Lab

NASDAQ 100 GARCH Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

16.54%

decreased by 0.65%

1 Week

16.77%

decreased by 0.42%

1 Month

17.63%

increased by 0.44%

Analysis last updated: Saturday, September 5, 2026 at 12:04 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of NASDAQ 100 GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 68 trading days, meaning a shock loses half its impact after approximately 68 days.

σ

GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 68-day half-life
ParamValuet-stat
ωconst0.0268
5.03***
αARCH0.0902
12.27***
βGARCH0.8997
121.45***

0.990

Persistence

68d

Half-life
σ

GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0268
5.03***
α

ARCH

Response to squared shocks

0.0902
12.27***
β

GARCH

Volatility persistence

0.8997
121.45***

Persistence:

0.990

Half-life:

68 days