Bangladesh Dhaka Stock Exchange Broad Index EGARCH Volatility Analysis
Volatility prediction for Sunday, October 25th, 2026
1 Day
7.30%
decreased by 0.73%
1 Week
7.90%
decreased by 0.13%
1 Month
9.75%
increased by 1.72%
Analysis last updated: Thursday, October 22, 2026 at 05:42 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 28, 2013 to Oct 21, 2026Model Insight
Volatility shocks decay with a half-life of 10 trading days, meaning a shock loses half its impact after approximately 10 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 10-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | -0.0269 | -0.99 |
| αARCH | 0.3230 | 8.34*** |
| βGARCH | 0.9302 | 34.78*** |
| γleverage | -0.0448 | -1.08 |
0.930
Persistence10d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | -0.0269 | -0.99 |
α ARCH Response to squared shocks | 0.3230 | 8.34*** |
β GARCH Volatility persistence | 0.9302 | 34.78*** |
γ leverage Additional response to negative shocks | -0.0448 | -1.08 |
Persistence:
0.930
Half-life:
10 days
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