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V-Lab
V-Lab

Schwab U.S. Mid-Cap ETF GJR-GARCH Volatility Analysis

Volatility prediction for Wednesday, September 9th, 2026

1 Day

13.87%

decreased by 0.51%

1 Week

14.18%

decreased by 0.20%

1 Month

15.16%

increased by 0.78%

Analysis last updated: Tuesday, September 8, 2026 at 10:42 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Schwab U.S. Mid-Cap ETF GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 13, 2011 to Sep 4, 2026

Model Insight

This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

GJR-GARCH Model

Tap to view equation

Leverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
ωconst0.0367
4.26***
αARCH0.0184
1.42
βGARCH0.8630
60.40***
γleverage0.1862
5.18***

0.975

Persistence

27d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0367
4.26***
α

ARCH

Response to squared shocks

0.0184
1.42
β

GARCH

Volatility persistence

0.8630
60.40***
γ

leverage

Additional response to negative shocks

0.1862
5.18***

Persistence:

0.975

Half-life:

27 days