V-Lab
Smith Douglas Homes Corp EGARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
55.75%
increased by 0.35%
1 Week
55.53%
increased by 0.13%
1 Month
54.75%
decreased by 0.65%
Analysis last updated: Saturday, September 12, 2026 at 12:29 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 11, 2024 to Sep 11, 2026Model Insight
Volatility shocks decay with a half-life of 40 trading days, meaning a shock loses half its impact after approximately 40 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 40-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0392 | 0.00 |
| αARCH | -0.0755 | 0.00 |
| βGARCH | 0.9828 | 1.35 |
| γleverage | -0.0244 | 0.00 |
0.983
Persistence40d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0392 | 0.00 |
α ARCH Response to squared shocks | -0.0755 | 0.00 |
β GARCH Volatility persistence | 0.9828 | 1.35 |
γ leverage Additional response to negative shocks | -0.0244 | 0.00 |
Persistence:
0.983
Half-life:
40 days
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