V-Lab
Pineapple Financial Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
72.77%
decreased by 1.36%
1 Week
87.41%
increased by 13.28%
1 Month
127.38%
increased by 53.25%
Analysis last updated: Saturday, September 12, 2026 at 12:44 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 1, 2023 to Sep 11, 2026Boundary Parameters
Model Insight
Volatility shocks decay with a half-life of 51 trading days, meaning a shock loses half its impact after approximately 51 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 51-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 1.68* |
| αARCH | 0.2113 | 1.96** |
| βGARCH | 0.7318 | 14.06*** |
| γleverage | 0.0868 | 0.29 |
0.987
Persistence51d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 1.68* |
α ARCH Response to squared shocks | 0.2113 | 1.96** |
β GARCH Volatility persistence | 0.7318 | 14.06*** |
γ leverage Additional response to negative shocks | 0.0868 | 0.29 |
Persistence:
0.987
Half-life:
51 days
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