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V-Lab

Rivian Automotive Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

72.31%

increased by 10.84%

1 Week

68.57%

increased by 7.10%

1 Month

66.86%

increased by 5.39%

Analysis last updated: Friday, August 21, 2026 at 10:09 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Rivian Automotive Inc S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 10, 2021 to Aug 21, 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 1 trading day.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.3515
12.50***
α

ARCH

Response to squared shocks

0.2354
2.89***
β

GARCH

Volatility persistence

0.2332
1.95*
γi Spline Coefficients
K=1
γ10.0317
3.80***

Persistence:

0.469

Half-life:

1 days