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V-Lab

Kei Industries Ltd APARCH Volatility Analysis

Volatility prediction for Monday, August 10th, 2026

1 Day

43.06%

decreased by 1.80%

1 Week

43.89%

decreased by 0.97%

1 Month

46.60%

increased by 1.74%

Analysis last updated: Saturday, August 8, 2026 at 10:10 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Kei Industries Ltd APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 5, 2006 to Aug 7, 2026

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 18% more than equivalent positive returns. The volatility power δ = 1.46 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

0.1821
10.05***
α

ARCH

Response to squared shocks

0.0825
23.31***
β

GARCH

Volatility persistence

0.9017
232.40***
γ

leverage

Additional response to negative shocks

0.0561
2.82***
δ

power

Transformation power

1.4632
22.26***

Persistence:

0.972

Half-life:

25 days