V-Lab
Stellant Securities (India) Spline ILLIQ Liquidity Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Illiquidity prediction for Thursday, September 17th, 2026
1 Day
21,935.44
increased by 18,955.75
1 Week
9,499.12
increased by 6,519.43
1 Month
5,604.40
increased by 2,624.71
Analysis last updated: Thursday, September 17, 2026 at 07:01 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Nov 11, 2013 to Sep 11, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 77016 trading days (~305.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
High persistence: persistence 1.000, shock half-life ~77016 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 2.6394 | 0.00 |
| αARCH | 0.6599 | 0.00 |
| βGARCH | 0.3401 | 0.00 |
Spline Coefficients
K=5
| γ1 | -46.2510 | -0.08 |
| γ2 | 49.1354 | 0.08 |
| γ3 | -7.2841 | -0.70 |
| γ4 | 18.3716 | 0.03 |
| γ5 | -28.6790 | -0.02 |
1.000
Persistence77016d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.6394 | 0.00 |
α ARCH Response to squared shocks | 0.6599 | 0.00 |
β GARCH Volatility persistence | 0.3401 | 0.00 |
Spline Coefficients
K=5
| γ1 | -46.2510 | -0.08 |
| γ2 | 49.1354 | 0.08 |
| γ3 | -7.2841 | -0.70 |
| γ4 | 18.3716 | 0.03 |
| γ5 | -28.6790 | -0.02 |
Persistence:
1.000
Half-life:
77016 days
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