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PMA Graphene Technology Group Inc GJR-GARCH Volatility Analysis

Volatility prediction for Monday, October 26th, 2026

1 Day

87.88%

decreased by 0.67%

1 Week

96.67%

increased by 8.12%

1 Month

118.30%

increased by 29.75%

Analysis last updated: Friday, October 23, 2026 at 10:32 PM UTC

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Date Range:

from

10/23/2024

to

10/23/2026

6M ·

1Y ·

All

graph of PMA Graphene Technology Group Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 22, 2024 to Oct 23, 2026
Boundary Parameters

Model Insight

Volatility shocks decay with a half-life of 13 trading days, meaning a shock loses half its impact after approximately 13 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 13-day half-life
ParamValuet-stat
ωconst5.0000
0.87
αARCH0.0717
1.04
βGARCH0.8156
12.68***
γleverage0.1206
0.64

0.948

Persistence

13d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.87
α

ARCH

Response to squared shocks

0.0717
1.04
β

GARCH

Volatility persistence

0.8156
12.68***
γ

leverage

Additional response to negative shocks

0.1206
0.64

Persistence:

0.948

Half-life:

13 days