V-Lab
NH Investment & Securities Co Ltd Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
1.31
decreased by 0.17
1 Week
1.38
decreased by 0.10
1 Month
1.40
decreased by 0.08
Analysis last updated: Saturday, September 19, 2026 at 11:51 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 3, 1990 to Sep 18, 2026Model Insight
With persistence 0.991, illiquidity shocks have a half-life of 74 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-AMEM Model
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High persistence: persistence 0.991, shock half-life ~74 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0587 | 0.84 |
| αARCH | 0.1508 | 2.20** |
| βGARCH | 0.8036 | 9.52*** |
| γleverage | 0.0726 | 1.28 |
0.991
Persistence74d
Half-lifeμ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0587 | 0.84 |
α ARCH Response to squared shocks | 0.1508 | 2.20** |
β GARCH Volatility persistence | 0.8036 | 9.52*** |
γ leverage Additional response to negative shocks | 0.0726 | 1.28 |
Persistence:
0.991
Half-life:
74 days
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