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V-Lab

ParkerVision Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

136.99%

increased by 23.75%

1 Week

140.66%

increased by 27.42%

1 Month

147.25%

increased by 34.01%

Analysis last updated: Saturday, July 25, 2026 at 09:26 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of ParkerVision Inc S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 2, 1993 to Jul 24, 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 5 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8493
11.24***
α

ARCH

Response to squared shocks

0.1587
7.60***
β

GARCH

Volatility persistence

0.7119
20.82***
γi Spline Coefficients
K=2
γ10.0059
4.75***
γ2-0.0090
-5.67***

Persistence:

0.871

Half-life:

5 days