V-Lab
Zhongchao Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
261.74%
decreased by 1.21%
1 Week
291.67%
increased by 28.72%
1 Month
319.23%
increased by 56.28%
Analysis last updated: Monday, August 24, 2026 at 09:19 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 24, 2020 to Aug 21, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 2 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1183 | 3.33*** |
α ARCH Response to squared shocks | 0.1627 | 3.38*** |
β GARCH Volatility persistence | 0.5727 | 3.94*** |
Spline Coefficients
K=10
| γ1 | 7.5773 | 1.68* |
| γ2 | -13.1614 | -1.77* |
| γ3 | 11.3766 | 2.34** |
| γ4 | -10.8098 | -2.14** |
| γ5 | 7.1605 | 1.03 |
| γ6 | 1.1643 | 0.22 |
| γ7 | -7.9988 | -2.87*** |
| γ8 | 5.1456 | 1.70* |
| γ9 | 3.3524 | 0.82 |
| γ10 | -6.6283 | -2.11** |
Persistence:
0.735
Half-life:
2 days
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