V-Lab
Tortoise Nuclear Renaissance ETF GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
31.72%
increased by 0.76%
1 Week
32.63%
increased by 1.67%
1 Month
33.36%
increased by 2.40%
Analysis last updated: Friday, July 24, 2026 at 10:50 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 18, 2025 to Jul 24, 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 | 1.4367 | 4.73*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.6059 | 8.09*** |
γ leverage Additional response to negative shocks | 0.1485 | 2.88*** |
Persistence:
0.680
Half-life:
2 days
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