Prothena Corp PLC Spline ILLIQ Liquidity Analysis
Liquidity prediction for Monday, July 13th, 2026
1 Day
5,103.15
increased by 446.39
1 Week
4,788.19
increased by 131.43
1 Month
5,374.90
increased by 718.14
Analysis last updated: Friday, July 10, 2026 at 10:26 PM UTC
News Impact Curve
How returns affect tomorrow's liquidityLiquidity Forecast
How liquidity evolves over timeParameter Estimates
Dec 21, 2012 to Jul 10, 2026Model Insight
With persistence 0.997, illiquidity shocks have a half-life of 213 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0477 | 6.55*** |
α ARCH Response to squared shocks | 0.0996 | 11.88*** |
β GARCH Volatility persistence | 0.8972 | 109.62*** |
Spline Coefficients
K=1
| γ1 | 0.0061 | 0.48 |
Persistence:
0.997
Half-life:
213 days
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