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Bank of New York Mellon Corp/The ILLIQ-MFMEM Liquidity Analysis

Illiquidity prediction for Monday, September 28th, 2026

1 Day

20.61

decreased by 1.27

1 Week

21.92

increased by 0.04

1 Month

24.70

increased by 2.82

Analysis last updated: Saturday, September 26, 2026 at 12:01 AM UTC

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graph of Bank of New York Mellon Corp/The ILLIQ-MFMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 25, 2026

Model Insight

Illiquidity shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 days. 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.

μ

ILLIQ-MFMEM Model

Tap to view equation

Shock decay: Shocks decay with a 4-day half-life
ParamValuet-stat
mwindow46
αARCH0.0887
5.49***
βGARCH0.7930
25.09***
γleverage-0.0887
-1.65*
λ₁tau intercept3.1845
1.34
λ₂forecast adj.0.9666
32.58***
λ₃tau persistence0.0090
7.79***

0.837

Persistence

4d

Half-life
μ

ILLIQ-MFMEM Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

46
α

ARCH

Response to squared shocks

0.0887
5.49***
β

GARCH

Volatility persistence

0.7930
25.09***
γ

leverage

Additional response to negative shocks

-0.0887
-1.65*
λ₁

tau intercept

Baseline long-term coefficient

3.1845
1.34
λ₂

forecast adj.

Forecast performance sensitivity

0.9666
32.58***
λ₃

tau persistence

Long-term factor persistence

0.0090
7.79***

Persistence:

0.837

Half-life:

4 days