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Calidi Biotherapeutics Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

114.33%

decreased by 8.00%

1 Week

150.84%

increased by 28.51%

1 Month

247.03%

increased by 124.70%

Analysis last updated: Monday, September 14, 2026 at 09:59 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Calidi Biotherapeutics Inc S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 10, 2021 to Sep 11, 2026

Model Insight

With persistence 0.998, volatility shocks have a half-life of 385 trading days (~1.5 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 0.998, shock half-life ~385 days
ParamValuet-stat
ωconst0.3884
5.92***
αARCH0.4715
4.06***
βGARCH0.5268
4.53***
γi Spline Coefficients
K=8
γ19.8346
2.21**
γ2-12.1629
-1.81*
γ311.8208
2.43**
γ4-23.0415
-7.17***
γ518.3187
4.67***
γ6-7.7868
-1.91*
γ75.8377
1.98**
γ8-3.9539
-2.30**

0.998

Persistence

385d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.3884
5.92***
α

ARCH

Response to squared shocks

0.4715
4.06***
β

GARCH

Volatility persistence

0.5268
4.53***
γi Spline Coefficients
K=8
γ19.8346
2.21**
γ2-12.1629
-1.81*
γ311.8208
2.43**
γ4-23.0415
-7.17***
γ518.3187
4.67***
γ6-7.7868
-1.91*
γ75.8377
1.98**
γ8-3.9539
-2.30**

Persistence:

0.998

Half-life:

385 days