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V-Lab

iShares Russell 2000 ETF GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, July 28th, 2026

1 Day

14.97%

decreased by 0.38%

1 Week

15.37%

increased by 0.02%

1 Month

16.67%

increased by 1.32%

Analysis last updated: Monday, July 27, 2026 at 09:36 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares Russell 2000 ETF GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 29, 2000 to Jul 24, 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0450
17.77***
α

ARCH

Response to squared shocks

0.0126
6.02***
β

GARCH

Volatility persistence

0.8985
419.48***
γ

leverage

Additional response to negative shocks

0.1318
22.31***

Persistence:

0.977

Half-life:

30 days