Horizon Small/Mid Cap Core Equity ETF GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, November 10th, 2026
1 Day
15.10%
unchanged at 0.00%
1 Week
15.10%
unchanged at 0.00%
1 Month
15.10%
unchanged at 0.00%
Analysis last updated: Monday, November 9, 2026 at 10:48 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 4, 2025 to Nov 6, 2026Model Insight
Volatility shocks decay with a half-life of 28 trading days, meaning a shock loses half its impact after approximately 28 days. Returns follow a Student-t distribution with v = 6.26 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
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Shock decay: Shocks decay with a 28-day half-lifev = 6.26 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωlong-run | 0.9052 | 0.19 |
| αscore | 0.0000 | 0.00 |
| βpersistence | 0.9758 | 1.47 |
| νDF | 6.2578 | 0.04 |
0.976
Persistence28d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω long-run Long-run variance given a price move | 0.9052 | 0.19 |
α score Weight on the scaled score | 0.0000 | 0.00 |
β persistence Volatility persistence | 0.9758 | 1.47 |
ν DF Student-t tail thickness | 6.2578 | 0.04 |
Persistence:
0.976
Half-life:
28 days
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