Skip to main content
V-Lab

Indonesia Prima Prop (Pt) 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 Friday, July 24th, 2026

1 Day

116.69%

decreased by 7.00%

1 Week

117.06%

decreased by 6.63%

1 Month

118.54%

decreased by 5.15%

Analysis last updated: Friday, July 24, 2026 at 08:35 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Indonesia Prima Prop (Pt) GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 31, 1992 to Jul 17, 2026

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): volatility shocks do not decay and the long-run variance is undefined, so long-horizon forecasts should be treated with caution.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1734
8.65***
α

ARCH

Response to squared shocks

0.0944
9.61***
β

GARCH

Volatility persistence

0.8791
168.57***
γ

leverage

Additional response to negative shocks

0.0530
1.32

Persistence:

1.000

Half-life:

-