V-Lab
BTB Korea Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Wednesday, October 7th, 2026
1 Day
1,990.01
decreased by 61.81
1 Week
1,934.52
decreased by 117.30
1 Month
2,045.43
decreased by 6.39
Analysis last updated: Wednesday, October 7, 2026 at 08:23 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 5, 2017 to Oct 2, 2026Model Insight
This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 3 trading days.
μ
ILLIQ-SMEM Model
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Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8544 | 2.69*** |
| αARCH | 0.1448 | 5.25*** |
| βGARCH | 0.6455 | 8.16*** |
Spline Coefficients
K=10
| γ1 | -34.8495 | -5.62*** |
| γ2 | 49.0321 | 5.67*** |
| γ3 | -8.7135 | -2.36** |
| γ4 | -9.7577 | -4.96*** |
| γ5 | 3.1740 | 2.06** |
| γ6 | 6.0883 | 3.97*** |
| γ7 | -6.8834 | -4.53*** |
| γ8 | 2.6313 | 1.55 |
| γ9 | -1.4123 | -0.66 |
| γ10 | 4.5474 | 1.60 |
0.790
Persistence3d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8544 | 2.69*** |
α ARCH Response to squared shocks | 0.1448 | 5.25*** |
β GARCH Volatility persistence | 0.6455 | 8.16*** |
Spline Coefficients
K=10
| γ1 | -34.8495 | -5.62*** |
| γ2 | 49.0321 | 5.67*** |
| γ3 | -8.7135 | -2.36** |
| γ4 | -9.7577 | -4.96*** |
| γ5 | 3.1740 | 2.06** |
| γ6 | 6.0883 | 3.97*** |
| γ7 | -6.8834 | -4.53*** |
| γ8 | 2.6313 | 1.55 |
| γ9 | -1.4123 | -0.66 |
| γ10 | 4.5474 | 1.60 |
Persistence:
0.790
Half-life:
3 days
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