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V-Lab

China Yangtze Power Co Ltd MF2-GARCH Volatility Analysis

Volatility prediction for Wednesday, August 5th, 2026

1 Day

22.49%

increased by 1.66%

1 Week

22.23%

increased by 1.40%

1 Month

21.88%

increased by 1.05%

Analysis last updated: Wednesday, August 5, 2026 at 06:12 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of China Yangtze Power Co Ltd MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 18, 2003 to Jul 31, 2026

Model Insight

Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

26
α

ARCH

Response to squared shocks

0.0646
14.08***
β

GARCH

Volatility persistence

0.8534
42.15***
γ

leverage

Additional response to negative shocks

-0.0071
-1.43
λ₁

tau intercept

Baseline long-term coefficient

0.0130
2.47**
λ₂

forecast adj.

Forecast performance sensitivity

0.0467
2.12**
λ₃

tau persistence

Long-term factor persistence

0.9465
39.18***

Persistence:

0.914

Half-life:

8 days