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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, September 14th, 2026

1 Day

132.60%

decreased by 1.12%

1 Week

132.62%

decreased by 1.10%

1 Month

132.70%

decreased by 1.02%

Analysis last updated: Friday, September 11, 2026 at 11:22 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 Sep 11, 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 270% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~693147 daysLeverage: Negative returns increase volatility 270% more than positive returns
ParamValuet-stat
ωconst0.0101
0.74
αARCH0.0071
1.45
βGARCH0.9833
107.52***
γleverage0.0192
2.25**

1.000

Persistence

693147d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0101
0.74
α

ARCH

Response to squared shocks

0.0071
1.45
β

GARCH

Volatility persistence

0.9833
107.52***
γ

leverage

Additional response to negative shocks

0.0192
2.25**

Persistence:

1.000

Half-life:

693147 days