Yw Co Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
47.67%
decreased by 3.90%
1 Week
46.55%
decreased by 5.02%
1 Month
42.77%
decreased by 8.80%
Analysis last updated: Tuesday, July 14, 2026 at 07:43 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 11, 2003 to Jul 10, 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 20 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.7006 | 7.51*** |
α ARCH Response to squared shocks | 0.1200 | 6.61*** |
β GARCH Volatility persistence | 0.8451 | 36.07*** |
Spline Coefficients
K=2
| γ1 | -0.0042 | -1.24 |
| γ2 | 0.0100 | 2.29** |
Persistence:
0.965
Half-life:
20 days
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