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V-Lab

Petrolia Se GJR-GARCH Volatility Analysis

Volatility prediction for Wednesday, August 5th, 2026

1 Day

40.54%

decreased by 0.12%

1 Week

41.82%

increased by 1.16%

1 Month

46.47%

increased by 5.81%

Analysis last updated: Wednesday, August 5, 2026 at 07:59 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Petrolia Se GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 11, 1999 to Jul 31, 2026

Model Insight

With persistence 0.997, volatility shocks have a half-life of 233 trading days (~0.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2277
18.57***
α

ARCH

Response to squared shocks

0.0644
18.51***
β

GARCH

Volatility persistence

0.9271
461.04***
γ

leverage

Additional response to negative shocks

0.0110
1.66*

Persistence:

0.997

Half-life:

233 days