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V-Lab

Cyanotech Corp Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Wednesday, July 22nd, 2026

1 Day

134.81%

decreased by 2.40%

1 Week

149.31%

increased by 12.10%

1 Month

163.26%

increased by 26.05%

Analysis last updated: Wednesday, July 22, 2026 at 10:35 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Cyanotech Corp S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 22, 1991 to Jul 10, 2026

Model 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 2 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.3817
4.08***
α

ARCH

Response to squared shocks

0.1668
8.08***
β

GARCH

Volatility persistence

0.5785
12.22***
γi Spline Coefficients
K=10
γ1-0.0903
-1.72*
γ20.2155
3.08***
γ3-0.2079
-4.80***
γ40.0737
1.71*
γ50.0707
1.50
γ6-0.1619
-3.25***
γ70.2196
4.32***
γ8-0.2081
-4.15***
γ90.2222
4.67***
γ10-0.2274
-6.45***

Persistence:

0.745

Half-life:

2 days