V-Lab
Host Hotels & Resorts Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
20.73%
decreased by 0.39%
1 Week
21.66%
increased by 0.54%
1 Month
24.60%
increased by 3.48%
Analysis last updated: Thursday, October 1, 2026 at 10:48 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 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 29 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.2115 | 5.36*** |
| αARCH | 0.0973 | 6.52*** |
| βGARCH | 0.8794 | 58.86*** |
Spline Coefficients
K=3
| γ1 | -0.0040 | -0.96 |
| γ2 | 0.0092 | 1.60 |
| γ3 | -0.0069 | -2.52** |
0.977
Persistence29d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2115 | 5.36*** |
α ARCH Response to squared shocks | 0.0973 | 6.52*** |
β GARCH Volatility persistence | 0.8794 | 58.86*** |
Spline Coefficients
K=3
| γ1 | -0.0040 | -0.96 |
| γ2 | 0.0092 | 1.60 |
| γ3 | -0.0069 | -2.52** |
Persistence:
0.977
Half-life:
29 days
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