SBA Communications Corp Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Wednesday, October 28th, 2026
1 Day
92.85
decreased by 1.32
1 Week
99.59
increased by 5.42
1 Month
96.17
increased by 2.00
Analysis last updated: Tuesday, October 27, 2026 at 10:17 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 16, 1999 to Oct 23, 2026Model Insight
With persistence 0.997, illiquidity shocks have a half-life of 200 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 141% more after negative returns
μ
ILLIQ-AMEM Model
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High persistence: persistence 0.997, shock half-life ~200 daysAsymmetry: Illiquidity rises 141% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.6667 | 3.34*** |
| αARCH | 0.0412 | 6.04*** |
| βGARCH | 0.9262 | 192.89*** |
| γleverage | 0.0581 | 5.42*** |
0.997
Persistence200d
Half-lifeμ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6667 | 3.34*** |
α ARCH Response to squared shocks | 0.0412 | 6.04*** |
β GARCH Volatility persistence | 0.9262 | 192.89*** |
γ leverage Additional response to negative shocks | 0.0581 | 5.42*** |
Persistence:
0.997
Half-life:
200 days
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