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V-Lab

Schwab U.S. Mid-Cap ETF Asy. Power MEM Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

13.08%

decreased by 0.08%

1 Week

12.26%

decreased by 0.90%

1 Month

10.53%

decreased by 2.63%

Analysis last updated: Thursday, September 3, 2026 at 09:48 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Schwab U.S. Mid-Cap ETF APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 13, 2011 to Aug 28, 2026

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 27% more than equivalent positive returns. The volatility power δ = 0.57 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

0.0644
8.10***
α

ARCH

Response to squared shocks

0.2622
14.19***
β

GARCH

Volatility persistence

0.6962
32.25***
γ

leverage

Additional response to negative shocks

0.2070
6.39***
δ

power

Transformation power

0.5666
3.09***

Persistence:

0.908

Half-life:

7 days