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V-Lab

PowerBank Corp APARCH Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

75.20%

decreased by 8.43%

1 Week

82.70%

decreased by 0.93%

1 Month

99.47%

increased by 15.84%

Analysis last updated: Friday, August 14, 2026 at 09:58 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of PowerBank Corp APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 8, 2024 to Aug 14, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 112% 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 = 1.09 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

0.8307
4.19***
α

ARCH

Response to squared shocks

0.1979
8.05***
β

GARCH

Volatility persistence

0.7458
20.80***
γ

leverage

Additional response to negative shocks

-0.3316
-4.17***
δ

power

Transformation power

1.0870
11.25***

Persistence:

0.906

Half-life:

7 days