V-Lab: HSI Volatility Index GJR-GARCH Volatility Analysis

V-Lab

HSI Volatility Index GJR-GARCH Volatility Analysis

Volatility Prediction for Thursday, August 21st, 2025:67.71% (-1.34%)

Analysis last updated: Saturday, August 23, 2025 at 01:18 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

Parameter Estimates

	param	t-stat
$ω$	1.5007	10.51
$α$	0.1194	15.79
$β$	0.8813	140.49
$γ$	-0.1139	-11.70

Estimation Period:
Jul 16, 2010 to Nov 19, 2021

News Impact Curve

Impact of return on volatility tomorrow

Volatility Forecasts

Volatility Forecasts