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
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 18, 2025 to Aug 21, 2026Model 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
| Parameter | Value | t-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
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