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V-Lab

Ishares Core Equity ETF PTF EGARCH Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

13.75%

increased by 0.08%

1 Week

13.81%

increased by 0.14%

1 Month

14.00%

increased by 0.33%

Analysis last updated: Tuesday, September 15, 2026 at 09:08 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Ishares Core Equity ETF PTF EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 13, 2019 to Sep 11, 2026

Model Insight

The leverage effect is captured by the negative gamma (gamma = -0.1542), confirming that negative shocks increase volatility more than positive shocks of equal magnitude.

σ

EGARCH Model

Tap to view equation

Asymmetry: Negative shocks have larger impact on volatility (leverage effect)
ParamValuet-stat
ωconst-0.0056
-0.16
αARCH0.0805
1.21
βGARCH0.9652
46.72***
γleverage-0.1542
-4.33***

0.965

Persistence

20d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

-0.0056
-0.16
α

ARCH

Response to squared shocks

0.0805
1.21
β

GARCH

Volatility persistence

0.9652
46.72***
γ

leverage

Additional response to negative shocks

-0.1542
-4.33***

Persistence:

0.965

Half-life:

20 days