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V-Lab

Stran & Company Inc Asy. Power MEM Volatility Analysis

Volatility prediction for Wednesday, July 22nd, 2026

1 Day

47.12%

decreased by 0.54%

1 Week

48.12%

increased by 0.46%

1 Month

51.49%

increased by 3.83%

Analysis last updated: Tuesday, July 21, 2026 at 09:35 PM UTC

Date Range:

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to

6M ·

1Y ·

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graph of Stran & Company Inc APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 17, 1999 to Jul 17, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 102% 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 = 2.69 sits above 2, so large shocks influence volatility more than quadratically, dominating the response more than in standard GARCH.

μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.7941
2.79***
α

ARCH

Response to squared shocks

0.0515
7.57***
β

GARCH

Volatility persistence

0.9145
256.52***
γ

leverage

Additional response to negative shocks

-0.1301
-7.13***
δ

power

Transformation power

2.6897
14.58***

Persistence:

0.987

Half-life:

53 days