V-Lab
Walt Disney Co/The Spline-GARCH Volatility Analysis
Volatility prediction for Thursday, October 1st, 2026
1 Day
21.76%
decreased by 0.54%
1 Week
22.11%
decreased by 0.19%
1 Month
23.07%
increased by 0.77%
Analysis last updated: Wednesday, September 30, 2026 at 09:52 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 25, 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 12 trading days.
τ
Spline-GARCH Model
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Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8192 | 6.03*** |
| αARCH | 0.0691 | 6.27*** |
| βGARCH | 0.8758 | 40.77*** |
Spline Coefficients
K=8
| γ1 | -0.0424 | -1.32 |
| γ2 | 0.1065 | 2.37** |
| γ3 | -0.1650 | -5.76*** |
| γ4 | 0.1841 | 6.51*** |
| γ5 | -0.1416 | -4.37*** |
| γ6 | 0.1143 | 2.47** |
| γ7 | -0.0725 | -1.40 |
| γ8 | -0.0209 | -0.35 |
0.945
Persistence12d
Half-lifeτ
Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8192 | 6.03*** |
α ARCH Response to squared shocks | 0.0691 | 6.27*** |
β GARCH Volatility persistence | 0.8758 | 40.77*** |
Spline Coefficients
K=8
| γ1 | -0.0424 | -1.32 |
| γ2 | 0.1065 | 2.37** |
| γ3 | -0.1650 | -5.76*** |
| γ4 | 0.1841 | 6.51*** |
| γ5 | -0.1416 | -4.37*** |
| γ6 | 0.1143 | 2.47** |
| γ7 | -0.0725 | -1.40 |
| γ8 | -0.0209 | -0.35 |
Persistence:
0.945
Half-life:
12 days
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