V-Lab
Weyerhaeuser Co Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
30.49%
increased by 0.50%
1 Week
30.44%
increased by 0.45%
1 Month
30.25%
increased by 0.26%
Analysis last updated: Thursday, October 1, 2026 at 11:18 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Sep 25, 2026Model Insight
With persistence 0.990, volatility shocks have a half-life of 71 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
High persistence: persistence 0.990, shock half-life ~71 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.1781 | 10.38*** |
| αARCH | 0.0524 | 8.38*** |
| βGARCH | 0.9380 | 134.94*** |
Spline Coefficients
K=1
| γ1 | 0.0004 | 2.51** |
0.990
Persistence71d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1781 | 10.38*** |
α ARCH Response to squared shocks | 0.0524 | 8.38*** |
β GARCH Volatility persistence | 0.9380 | 134.94*** |
Spline Coefficients
K=1
| γ1 | 0.0004 | 2.51** |
Persistence:
0.990
Half-life:
71 days
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