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China Yangtze Power Co Ltd Asy. Power MEM Volatility Analysis

Volatility prediction for Friday, October 16th, 2026

1 Day

14.71%

decreased by 0.56%

1 Week

13.89%

decreased by 1.38%

1 Month

11.76%

decreased by 3.51%

Analysis last updated: Friday, October 16, 2026 at 06:26 PM UTC

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Date Range:

from

10/15/2024

to

10/15/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of China Yangtze Power Co Ltd APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 18, 2003 to Oct 9, 2026

Model Insight

Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days. The volatility power δ = 0.63 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

μ

APMEM Model

Tap to view equation

Shock decay: Shocks decay with a 12-day half-lifeδ = 0.63 · sub-quadratic power
ParamValuet-stat
ωconst0.0340
4.95***
αARCH0.2113
14.38***
βGARCH0.7751
49.16***
γleverage-0.0033
-0.11
δpower0.6342
2.66***

0.945

Persistence

12d

Half-life
μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0340
4.95***
α

ARCH

Response to squared shocks

0.2113
14.38***
β

GARCH

Volatility persistence

0.7751
49.16***
γ

leverage

Additional response to negative shocks

-0.0033
-0.11
δ

power

Transformation power

0.6342
2.66***

Persistence:

0.945

Half-life:

12 days