V-Lab
Big Sky Industrial Inc GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, September 16th, 2026
1 Day
64.07%
decreased by 1.88%
1 Week
65.69%
decreased by 0.26%
1 Month
71.16%
increased by 5.21%
Analysis last updated: Wednesday, September 16, 2026 at 02:16 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Sep 11, 2026Model Insight
Volatility shocks decay with a half-life of 39 trading days, meaning a shock loses half its impact after approximately 39 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 39-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7075 | 4.61*** |
| αARCH | 0.0956 | 4.35*** |
| βGARCH | 0.8826 | 55.94*** |
| γleverage | 0.0087 | 0.22 |
0.983
Persistence39d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7075 | 4.61*** |
α ARCH Response to squared shocks | 0.0956 | 4.35*** |
β GARCH Volatility persistence | 0.8826 | 55.94*** |
γ leverage Additional response to negative shocks | 0.0087 | 0.22 |
Persistence:
0.983
Half-life:
39 days
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