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Bpl Ltd ILLIQ-MFMEM Liquidity Analysis

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

Illiquidity prediction for Tuesday, September 8th, 2026

1 Day

5,257.86

increased by 733.20

1 Week

5,663.19

increased by 1,138.53

1 Month

5,474.79

increased by 950.13

Analysis last updated: Tuesday, September 8, 2026 at 08:31 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Bpl Ltd ILLIQ-MFMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jun 26, 1997 to Sep 4, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 24321 trading days (~96.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. This multi-frequency model splits illiquidity into a fast short-run component and a slow-moving long-run level that drifts over the sample rather than a constant baseline.

Asymmetry: Illiquidity rises 222% more after negative returns

μ

ILLIQ-MFMEM Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~24321 daysAsymmetry: Illiquidity rises 222% more after negative returns
ParamValuet-stat
mwindow61
αARCH0.1831
3.16***
βGARCH0.6139
43.78***
γleverage0.4059
3.80***
λ₁tau intercept8.9860
0.06
λ₂forecast adj.1.0000
11.85***
λ₃tau persistence0.0000
0.00

1.000

Persistence

24321d

Half-life
μ

ILLIQ-MFMEM Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

61
α

ARCH

Response to squared shocks

0.1831
3.16***
β

GARCH

Volatility persistence

0.6139
43.78***
γ

leverage

Additional response to negative shocks

0.4059
3.80***
λ₁

tau intercept

Baseline long-term coefficient

8.9860
0.06
λ₂

forecast adj.

Forecast performance sensitivity

1.0000
11.85***
λ₃

tau persistence

Long-term factor persistence

0.0000
0.00

Persistence:

1.000

Half-life:

24321 days