V-Lab
News Corp Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 22nd, 2026
1 Day
105.99
decreased by 2.45
1 Week
111.03
increased by 2.59
1 Month
115.78
increased by 7.34
Analysis last updated: Monday, September 21, 2026 at 09:28 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 19, 2013 to Sep 18, 2026Model Insight
With persistence 0.998, illiquidity shocks have a half-life of 290 trading days (~1.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 205% more after negative returns
μ
ILLIQ-AMEM Model
Tap to view equation
High persistence: persistence 0.998, shock half-life ~290 daysAsymmetry: Illiquidity rises 205% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8200 | 1.22 |
| αARCH | 0.0227 | 2.50** |
| βGARCH | 0.9517 | 154.65*** |
| γleverage | 0.0464 | 2.52** |
0.998
Persistence290d
Half-lifeμ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8200 | 1.22 |
α ARCH Response to squared shocks | 0.0227 | 2.50** |
β GARCH Volatility persistence | 0.9517 | 154.65*** |
γ leverage Additional response to negative shocks | 0.0464 | 2.52** |
Persistence:
0.998
Half-life:
290 days
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