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Vulcan Infrastructure and Power Inc GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

99.06%

decreased by 0.64%

1 Week

102.79%

increased by 3.09%

1 Month

111.05%

increased by 11.35%

Analysis last updated: Monday, September 14, 2026 at 09:39 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Vulcan Infrastructure and Power Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 15, 2021 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 8-day half-life
ParamValuet-stat
ωconst5.0000
1.93*
αARCH0.0688
1.55
βGARCH0.8518
14.73***
γleverage-0.0146
-0.15

0.913

Persistence

8d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
1.93*
α

ARCH

Response to squared shocks

0.0688
1.55
β

GARCH

Volatility persistence

0.8518
14.73***
γ

leverage

Additional response to negative shocks

-0.0146
-0.15

Persistence:

0.913

Half-life:

8 days