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V-Lab

Jiawei Renewable Energy Co Ltd APARCH Volatility Analysis

Volatility prediction for Tuesday, July 14th, 2026

1 Day

55.64%

increased by 3.70%

1 Week

56.13%

increased by 4.19%

1 Month

57.71%

increased by 5.77%

Analysis last updated: Tuesday, July 14, 2026 at 06:22 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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graph of Jiawei Renewable Energy Co Ltd APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 11, 2012 to Jul 10, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 56% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets. The volatility power δ = 1.59 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2899
8.19***
α

ARCH

Response to squared shocks

0.0957
17.85***
β

GARCH

Volatility persistence

0.8828
141.76***
γ

leverage

Additional response to negative shocks

-0.1399
-5.65***
δ

power

Transformation power

1.5850
18.58***

Persistence:

0.968

Half-life:

21 days