V-Lab
Sunstone Hotel Investors Inc GARCH Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
16.00%
increased by 0.17%
1 Week
16.56%
increased by 0.73%
1 Month
18.55%
increased by 2.72%
Analysis last updated: Thursday, October 1, 2026 at 11:15 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 21, 2004 to Sep 25, 2026Model Insight
With persistence 0.992, volatility shocks have a half-life of 83 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GARCH Model
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High persistence: persistence 0.992, shock half-life ~83 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0453 | 4.49*** |
| αARCH | 0.0788 | 7.47*** |
| βGARCH | 0.9129 | 92.98*** |
0.992
Persistence83d
Half-lifeσ
GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0453 | 4.49*** |
α ARCH Response to squared shocks | 0.0788 | 7.47*** |
β GARCH Volatility persistence | 0.9129 | 92.98*** |
Persistence:
0.992
Half-life:
83 days
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