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Bangladesh Dhaka Stock Exchange Broad Index APARCH Volatility Analysis

Volatility prediction for Sunday, October 4th, 2026

1 Day

9.90%

decreased by 0.58%

1 Week

10.16%

decreased by 0.32%

1 Month

11.14%

increased by 0.66%

Analysis last updated: Friday, October 2, 2026 at 05:47 PM UTC

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Date Range:

from

10/01/2024

to

10/01/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Bangladesh Dhaka Stock Exchange Broad Index APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 28, 2013 to Oct 1, 2026

Model Insight

With persistence 0.999, volatility shocks have a half-life of 651 trading days (~2.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 48% more than positive returns

σ

APARCH Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~651 daysLeverage: Negative returns increase volatility 48% more than positive returns
ParamValuet-stat
ωconst0.0108
4.25***
αARCH0.1925
11.67***
βGARCH0.8075
42.02***
γleverage0.1006
2.35**
δpower1.9584
7.68***

0.999

Persistence

651d

Half-life
σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0108
4.25***
α

ARCH

Response to squared shocks

0.1925
11.67***
β

GARCH

Volatility persistence

0.8075
42.02***
γ

leverage

Additional response to negative shocks

0.1006
2.35**
δ

power

Transformation power

1.9584
7.68***

Persistence:

0.999

Half-life:

651 days