V-Lab
SBA Communications Corp Spline-GARCH Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
30.82%
decreased by 0.26%
1 Week
31.43%
increased by 0.35%
1 Month
33.51%
increased by 2.43%
Analysis last updated: Thursday, October 1, 2026 at 10:57 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 16, 1999 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 38 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 | 2.3369 | 9.37*** |
| αARCH | 0.0664 | 8.49*** |
| βGARCH | 0.9156 | 99.32*** |
Spline Coefficients
K=1
| γ1 | 0.0090 | 7.32*** |
0.982
Persistence38d
Half-lifeτ
Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.3369 | 9.37*** |
α ARCH Response to squared shocks | 0.0664 | 8.49*** |
β GARCH Volatility persistence | 0.9156 | 99.32*** |
Spline Coefficients
K=1
| γ1 | 0.0090 | 7.32*** |
Persistence:
0.982
Half-life:
38 days
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