V-Lab
Calidi Biotherapeutics Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 18th, 2026
1 Day
209.27%
increased by 80.12%
1 Week
235.87%
increased by 106.72%
1 Month
319.90%
increased by 190.75%
Analysis last updated: Monday, August 17, 2026 at 09:52 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 10, 2021 to Aug 14, 2026Model Insight
With persistence 0.998, volatility shocks have a half-life of 331 trading days (~1.3 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
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.3767 | 5.32*** |
α ARCH Response to squared shocks | 0.4711 | 4.10*** |
β GARCH Volatility persistence | 0.5268 | 4.57*** |
Spline Coefficients
K=8
| γ1 | 11.0212 | 2.59*** |
| γ2 | -14.3222 | -2.29** |
| γ3 | 13.9266 | 3.21*** |
| γ4 | -24.7979 | -7.66*** |
| γ5 | 19.1728 | 4.49*** |
| γ6 | -8.6869 | -2.15** |
| γ7 | 7.4945 | 2.40** |
| γ8 | -5.4708 | -1.84* |
Persistence:
0.998
Half-life:
331 days
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