Skip to main content
V-Lab

Tortoise Nuclear Renaissance ETF GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

33.34%

decreased by 2.91%

1 Week

33.42%

decreased by 2.83%

1 Month

33.49%

decreased by 2.76%

Analysis last updated: Friday, August 21, 2026 at 10:51 PM UTC

Date Range:

from

to

6M ·

All

graph of Tortoise Nuclear Renaissance ETF GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 18, 2025 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.5080
5.94***
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.5564
8.67***
γ

leverage

Additional response to negative shocks

0.2104
3.64***

Persistence:

0.662

Half-life:

2 days