Invesco Galaxy Solana ETF GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, July 21st, 2026
1 Day
56.77%
increased by 2.60%
1 Week
59.36%
increased by 5.19%
1 Month
64.90%
increased by 10.73%
Analysis last updated: Monday, July 20, 2026 at 09:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 15, 2025 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days. Returns follow a Student-t distribution with v = 7.27 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 19.9417 | 3.86*** |
α ARCH Response to squared shocks | 0.1108 | 3.31*** |
β GARCH Volatility persistence | 0.9085 | 36.15*** |
ν DF Student-t tail thickness | 7.2707 | 0.60 |
Persistence:
0.909
Half-life:
7 days
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