V-Lab
Home Depot Inc/The GJR-GARCH Volatility Analysis
Volatility prediction for Monday, October 5th, 2026
1 Day
26.07%
decreased by 0.79%
1 Week
26.24%
decreased by 0.62%
1 Month
26.91%
increased by 0.05%
Analysis last updated: Friday, October 2, 2026 at 11:39 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Oct 2, 2026Model Insight
With persistence 0.994, volatility shocks have a half-life of 122 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Leverage: Negative returns increase volatility 366% more than positive returns
σ
GJR-GARCH Model
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High persistence: persistence 0.994, shock half-life ~122 daysLeverage: Negative returns increase volatility 366% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0338 | 3.68*** |
| αARCH | 0.0229 | 3.80*** |
| βGARCH | 0.9294 | 127.68*** |
| γleverage | 0.0839 | 4.86*** |
0.994
Persistence122d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0338 | 3.68*** |
α ARCH Response to squared shocks | 0.0229 | 3.80*** |
β GARCH Volatility persistence | 0.9294 | 127.68*** |
γ leverage Additional response to negative shocks | 0.0839 | 4.86*** |
Persistence:
0.994
Half-life:
122 days
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