V-Lab
Nordic Semiconductor Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
49.25%
increased by 1.67%
1 Week
50.02%
increased by 2.44%
1 Month
51.00%
increased by 3.42%
Analysis last updated: Sunday, July 26, 2026 at 05:21 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 22, 2000 to Jul 24, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 3 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1117 | 6.57*** |
α ARCH Response to squared shocks | 0.1044 | 4.26*** |
β GARCH Volatility persistence | 0.6889 | 10.08*** |
Spline Coefficients
K=10
| γ1 | -0.3370 | -2.21** |
| γ2 | 0.5749 | 2.21** |
| γ3 | -0.3054 | -1.69* |
| γ4 | -0.0283 | -0.25 |
| γ5 | 0.2204 | 2.35** |
| γ6 | -0.1586 | -1.30 |
| γ7 | 0.0404 | 0.25 |
| γ8 | 0.0567 | 0.39 |
| γ9 | -0.1842 | -1.58 |
| γ10 | 0.1710 | 2.22** |
Persistence:
0.793
Half-life:
3 days
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