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Vanda Pharmaceuticals Inc Asymmetric ILLIQ Liquidity Analysis

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

Illiquidity prediction for Thursday, August 6th, 2026

1 Day

5,295.49

increased by 166.17

1 Week

5,093.40

decreased by 35.92

1 Month

4,493.70

decreased by 635.62

Analysis last updated: Wednesday, August 5, 2026 at 09:14 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Vanda Pharmaceuticals Inc ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Apr 12, 2006 to Jul 31, 2026

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): illiquidity shocks do not decay and the long-run level is undefined, so long-horizon forecasts should be treated with caution.

Asymmetry: Illiquidity rises 16% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
1.71*
α

ARCH

Response to squared shocks

0.1471
32.76***
β

GARCH

Volatility persistence

0.8413
537.20***
γ

leverage

Additional response to negative shocks

0.0233
3.10***

Persistence:

1.000

Half-life:

-