V-Lab
Granite Real Estate Investment Trust GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
21.14%
increased by 0.03%
1 Week
21.60%
increased by 0.49%
1 Month
23.12%
increased by 2.01%
Analysis last updated: Friday, October 2, 2026 at 09:04 AM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 20, 2003 to Sep 25, 2026Model Insight
Volatility shocks decay with a half-life of 33 trading days, meaning a shock loses half its impact after approximately 33 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 33-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0769 | 5.85*** |
| αARCH | 0.1134 | 3.42*** |
| βGARCH | 0.8283 | 39.28*** |
| γleverage | 0.0746 | 1.29 |
0.979
Persistence33d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0769 | 5.85*** |
α ARCH Response to squared shocks | 0.1134 | 3.42*** |
β GARCH Volatility persistence | 0.8283 | 39.28*** |
γ leverage Additional response to negative shocks | 0.0746 | 1.29 |
Persistence:
0.979
Half-life:
33 days
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