Skip to main content
V-Lab
V-Lab

Apple Inc Asy. Power MEM Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

32.48%

increased by 3.75%

1 Week

31.68%

increased by 2.95%

1 Month

29.26%

increased by 0.53%

Analysis last updated: Friday, September 4, 2026 at 09:30 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Apple Inc APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 4, 2026

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 25% more than equivalent positive returns. The volatility power δ = 1.16 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

Leverage: Negative returns increase volatility 25% more than positive returnsδ = 1.16 · sub-quadratic power
ParamValuet-stat
ωconst0.0662
5.59***
αARCH0.2046
16.75***
βGARCH0.7904
60.93***
γleverage0.0968
4.35***
δpower1.1623
7.02***

0.956

Persistence

15d

Half-life
μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0662
5.59***
α

ARCH

Response to squared shocks

0.2046
16.75***
β

GARCH

Volatility persistence

0.7904
60.93***
γ

leverage

Additional response to negative shocks

0.0968
4.35***
δ

power

Transformation power

1.1623
7.02***

Persistence:

0.956

Half-life:

15 days