Miami International Hold Inc GARCH Volatility Analysis
Volatility prediction for Monday, October 19th, 2026
1 Day
43.96%
decreased by 0.58%
1 Week
43.75%
decreased by 0.79%
1 Month
43.17%
decreased by 1.37%
Analysis last updated: Friday, October 16, 2026 at 11:24 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 14, 2025 to Oct 16, 2026Model Insight
Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days.
σ
GARCH Model
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Shock decay: Shocks decay with a 12-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.4017 | 0.53 |
| αARCH | 0.0200 | 0.62 |
| βGARCH | 0.9227 | 6.97*** |
0.943
Persistence12d
Half-lifeσ
GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4017 | 0.53 |
α ARCH Response to squared shocks | 0.0200 | 0.62 |
β GARCH Volatility persistence | 0.9227 | 6.97*** |
Persistence:
0.943
Half-life:
12 days
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