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V-Lab

China Yangtze Power Co Ltd Asy. MEM Volatility Analysis

Volatility prediction for Monday, August 10th, 2026

1 Day

19.62%

decreased by 1.55%

1 Week

19.84%

decreased by 1.33%

1 Month

20.59%

decreased by 0.58%

Analysis last updated: Saturday, August 8, 2026 at 06:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of China Yangtze Power Co Ltd AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 18, 2003 to Aug 7, 2026

Model Insight

Volatility shocks decay with a half-life of 38 trading days, meaning a shock loses half its impact after approximately 38 days.

μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0446
24.39***
α

ARCH

Response to squared shocks

0.1958
38.20***
β

GARCH

Volatility persistence

0.7795
215.45***
γ

leverage

Additional response to negative shocks

0.0136
1.46

Persistence:

0.982

Half-life:

38 days