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V-Lab

Regencell Bioscience Hol Ltd GJR-GARCH Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Monday, July 27th, 2026

1 Day

160.66%

decreased by 1.32%

1 Week

160.68%

decreased by 1.30%

1 Month

160.74%

decreased by 1.24%

Analysis last updated: Friday, July 24, 2026 at 10:01 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Regencell Bioscience Hol Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 9, 2002 to Jul 24, 2026

Model Insight

With persistence 1.000, volatility shocks have a half-life of 693147 trading days (~2750.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 299% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0101
2.87***
α

ARCH

Response to squared shocks

0.0066
5.61***
β

GARCH

Volatility persistence

0.9835
432.87***
γ

leverage

Additional response to negative shocks

0.0198
9.33***

Persistence:

1.000

Half-life:

693147 days