Skip to main content
V-Lab
V-Lab

Simon Property Group Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Wednesday, October 28th, 2026

1 Day

35.92

decreased by 1.39

1 Week

37.23

decreased by 0.08

1 Month

29.26

decreased by 8.05

Analysis last updated: Tuesday, October 27, 2026 at 10:36 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

10/27/2024

to

10/27/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Simon Property Group Inc ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Dec 14, 1993 to Oct 23, 2026

Model Insight

With persistence 0.999, illiquidity shocks have a half-life of 646 trading days (~2.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~646 days
ParamValuet-stat
ωconst1.1410
8.33***
αARCH0.0536
12.08***
βGARCH0.9453
208.96***
∑γi Spline Coefficients
K=2
γ1-0.0069
-1.58
γ20.0157
1.92*

0.999

Persistence

646d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.1410
8.33***
α

ARCH

Response to squared shocks

0.0536
12.08***
β

GARCH

Volatility persistence

0.9453
208.96***
∑γi Spline Coefficients
K=2
γ1-0.0069
-1.58
γ20.0157
1.92*

Persistence:

0.999

Half-life:

646 days