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V-Lab
V-Lab

Zumiez Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, September 22nd, 2026

1 Day

5,382.94

increased by 415.66

1 Week

5,452.87

increased by 485.59

1 Month

5,596.81

increased by 629.53

Analysis last updated: Monday, September 21, 2026 at 09:35 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Zumiez Inc ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

May 6, 2005 to Sep 18, 2026

Model Insight

This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 61 trading days.

μ

ILLIQ-SMEM Model

Tap to view equation

Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.4102
5.83***
αARCH0.1056
14.15***
βGARCH0.8831
109.33***
γi Spline Coefficients
K=1
γ10.0016
0.70

0.989

Persistence

61d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.4102
5.83***
α

ARCH

Response to squared shocks

0.1056
14.15***
β

GARCH

Volatility persistence

0.8831
109.33***
γi Spline Coefficients
K=1
γ10.0016
0.70

Persistence:

0.989

Half-life:

61 days