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Simon Property Group Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Wednesday, August 12th, 2026

1 Day

30.66

decreased by 0.73

1 Week

30.68

decreased by 0.71

1 Month

29.32

decreased by 2.07

Analysis last updated: Tuesday, August 11, 2026 at 10:25 PM UTC

Date Range:

from

to

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 Aug 7, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 1537 trading days (~6.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.1451
8.37***
α

ARCH

Response to squared shocks

0.0535
12.29***
β

GARCH

Volatility persistence

0.9460
217.83***
γi Spline Coefficients
K=1
γ1-0.0001
-0.02

Persistence:

1.000

Half-life:

1537 days