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V-Lab

Cyanotech Corp Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Wednesday, August 19th, 2026

1 Day

162.97%

increased by 2.90%

1 Week

171.69%

increased by 11.62%

1 Month

180.30%

increased by 20.23%

Analysis last updated: Wednesday, August 19, 2026 at 09:08 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 Aug 14, 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

1.3796
4.16***
α

ARCH

Response to squared shocks

0.1627
7.98***
β

GARCH

Volatility persistence

0.5781
12.00***
γi Spline Coefficients
K=10
γ1-0.0899
-1.75*
γ20.2157
3.15***
γ3-0.2104
-4.95***
γ40.0787
1.86*
γ50.0648
1.40
γ6-0.1565
-3.15***
γ70.2163
4.26***
γ8-0.2069
-4.17***
γ90.2211
4.75***
γ10-0.2270
-6.59***

Persistence:

0.741

Half-life:

2 days