Skip to main content
V-Lab
V-Lab

HSI Volatility Index EGARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

69.04%

increased by 4.71%

1 Week

70.98%

increased by 6.65%

1 Month

76.62%

increased by 12.29%

Analysis last updated: Saturday, September 12, 2026 at 12:48 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of HSI Volatility Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 16, 2010 to Sep 10, 2026

Model Insight

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

EGARCH Model

Tap to view equation

Inverse leverage: volatility responds almost entirely to positive returns
ParamValuet-stat
ωconst0.2108
1.59
αARCH0.1233
3.20***
βGARCH0.9382
37.85***
γleverage0.1303
2.71***

0.938

Persistence

11d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2108
1.59
α

ARCH

Response to squared shocks

0.1233
3.20***
β

GARCH

Volatility persistence

0.9382
37.85***
γ

leverage

Additional response to negative shocks

0.1303
2.71***

Persistence:

0.938

Half-life:

11 days