V-Lab
Crown Castle Inc GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
28.84%
decreased by 0.60%
1 Week
28.97%
decreased by 0.47%
1 Month
29.44%
increased by 0.00%
Analysis last updated: Thursday, October 1, 2026 at 11:04 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 18, 1998 to Sep 25, 2026Model Insight
With persistence 0.997, volatility shocks have a half-life of 214 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Leverage: Negative returns increase volatility 158% more than positive returns
σ
GJR-GARCH Model
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High persistence: persistence 0.997, shock half-life ~214 daysLeverage: Negative returns increase volatility 158% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0249 | 3.45*** |
| αARCH | 0.0335 | 4.36*** |
| βGARCH | 0.9369 | 146.27*** |
| γleverage | 0.0529 | 3.24*** |
0.997
Persistence214d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0249 | 3.45*** |
α ARCH Response to squared shocks | 0.0335 | 4.36*** |
β GARCH Volatility persistence | 0.9369 | 146.27*** |
γ leverage Additional response to negative shocks | 0.0529 | 3.24*** |
Persistence:
0.997
Half-life:
214 days
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