V-Lab
Xexymix Corp Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
49.11%
decreased by 3.28%
1 Week
50.67%
decreased by 1.72%
1 Month
52.74%
increased by 0.35%
Analysis last updated: Sunday, July 26, 2026 at 03:53 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 13, 2020 to Jul 24, 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 3 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1318 | 3.49*** |
α ARCH Response to squared shocks | 0.1377 | 3.61*** |
β GARCH Volatility persistence | 0.6690 | 7.81*** |
Spline Coefficients
K=9
| γ1 | 2.3753 | 0.80 |
| γ2 | -3.9353 | -0.86 |
| γ3 | 3.7270 | 1.05 |
| γ4 | -5.1467 | -1.37 |
| γ5 | 6.1532 | 1.99** |
| γ6 | -3.6240 | -1.78* |
| γ7 | -2.5854 | -1.42 |
| γ8 | 5.8893 | 2.48** |
| γ9 | -3.6911 | -1.79* |
Persistence:
0.807
Half-life:
3 days
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