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Dana Brata Luhur Tbk PT Asy. Power MEM Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Friday, September 11th, 2026

1 Day

86.48%

increased by 16.16%

1 Week

86.52%

increased by 16.20%

1 Month

86.70%

increased by 16.38%

Analysis last updated: Friday, September 11, 2026 at 09:52 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Dana Brata Luhur Tbk PT APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 18, 2019 to Sep 4, 2026

Model Insight

With persistence 1.000, volatility shocks have a half-life of 73300204 trading days (~290873.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

APMEM Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~73300204 days
ParamValuet-stat
ωconst0.0151
1.86*
αARCH0.2160
2.88***
βGARCH0.7840
9.99***
γleverage0.0067
0.04
δpower1.9999
2.01**

1.000

Persistence

73300204d

Half-life
μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0151
1.86*
α

ARCH

Response to squared shocks

0.2160
2.88***
β

GARCH

Volatility persistence

0.7840
9.99***
γ

leverage

Additional response to negative shocks

0.0067
0.04
δ

power

Transformation power

1.9999
2.01**

Persistence:

1.000

Half-life:

73300204 days