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V-Lab

Datamatics Global Services AGARCH Volatility Analysis

Volatility prediction for Tuesday, July 21st, 2026

1 Day

41.28%

decreased by 1.33%

1 Week

43.91%

increased by 1.30%

1 Month

49.20%

increased by 6.59%

Analysis last updated: Tuesday, July 21, 2026 at 07:02 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Datamatics Global Services AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 1, 2004 to Jul 17, 2026

Model Insight

Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days.

σ

AGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.1529
26.24***
α

ARCH

Response to squared shocks

0.1230
31.02***
β

GARCH

Volatility persistence

0.7783
129.70***
γ

leverage

Additional response to negative shocks

-0.1974
-1.73*

Persistence:

0.901

Half-life:

7 days