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V-Lab

Heungkuk Fire & Marine Insurance Co Ltd Asy. Power MEM Volatility Analysis

Volatility prediction for Monday, August 10th, 2026

1 Day

44.66%

decreased by 2.44%

1 Week

44.29%

decreased by 2.81%

1 Month

43.02%

decreased by 4.08%

Analysis last updated: Saturday, August 8, 2026 at 11:40 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Heungkuk Fire & Marine Insurance Co Ltd APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1990 to Aug 7, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 14% 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 = 1.47 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0908
19.71***
α

ARCH

Response to squared shocks

0.1804
45.76***
β

GARCH

Volatility persistence

0.8196
238.12***
γ

leverage

Additional response to negative shocks

-0.0430
-6.31***
δ

power

Transformation power

1.4732
24.04***

Persistence:

0.974

Half-life:

26 days