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V-Lab

Estun Automation Co Ltd Asy. MEM Volatility Analysis

Volatility prediction for Wednesday, August 5th, 2026

1 Day

85.21%

decreased by 1.28%

1 Week

84.96%

decreased by 1.53%

1 Month

84.04%

decreased by 2.45%

Analysis last updated: Wednesday, August 5, 2026 at 06:49 PM UTC

Date Range:

from

to

6M ·

All

graph of Estun Automation Co Ltd AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 9, 2026 to Jul 31, 2026

Model Insight

With persistence 0.992, volatility shocks have a half-life of 88 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Inverse leverage: volatility responds almost entirely to positive returns

μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1435
0.96
α

ARCH

Response to squared shocks

0.1885
6.18***
β

GARCH

Volatility persistence

0.8979
29.29***
γ

leverage

Additional response to negative shocks

-0.1885
-2.70***

Persistence:

0.992

Half-life:

88 days