V-Lab
Sierra Bancorp Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, July 24th, 2026
1 Day
4,987.27
decreased by 264.20
1 Week
5,618.80
increased by 367.33
1 Month
5,548.08
increased by 296.61
Analysis last updated: Thursday, July 23, 2026 at 09:18 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 20, 1996 to Jul 17, 2026Model 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 22 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.4621 | 5.17*** |
α ARCH Response to squared shocks | 0.1185 | 13.59*** |
β GARCH Volatility persistence | 0.8502 | 64.80*** |
Spline Coefficients
K=6
| γ1 | -0.2947 | -7.83*** |
| γ2 | 0.4889 | 8.21*** |
| γ3 | -0.2737 | -6.20*** |
| γ4 | 0.0909 | 2.75*** |
| γ5 | 0.0328 | 1.35 |
| γ6 | -0.1304 | -4.37*** |
Persistence:
0.969
Half-life:
22 days
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