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V-Lab

Plc Spa GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

37.58%

decreased by 0.03%

1 Week

43.07%

increased by 5.46%

1 Month

47.44%

increased by 9.83%

Analysis last updated: Saturday, August 22, 2026 at 11:19 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Plc Spa GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 20, 2006 to Aug 21, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 80% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.8495
18.16***
α

ARCH

Response to squared shocks

0.1528
13.40***
β

GARCH

Volatility persistence

0.4879
24.86***
γ

leverage

Additional response to negative shocks

0.1226
4.56***

Persistence:

0.702

Half-life:

2 days