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Miami International Hold Inc APARCH Volatility Analysis

Volatility prediction for Monday, October 19th, 2026

1 Day

45.59%

decreased by 0.62%

1 Week

45.16%

decreased by 1.05%

1 Month

43.98%

decreased by 2.23%

Analysis last updated: Friday, October 16, 2026 at 11:24 PM UTC

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Date Range:

from

10/16/2024

to

10/16/2026

6M ·

1Y ·

All

graph of Miami International Hold Inc APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 14, 2025 to Oct 16, 2026
Boundary Parameters

Model Insight

Volatility shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 days.

σ

APARCH Model

Tap to view equation

Shock decay: Shocks decay with a 11-day half-life
ParamValuet-stat
ωconst0.3881
0.37
αARCH0.0082
0.00
βGARCH0.9223
6.42***
γleverage1.0000
0.00
δpower1.8701
1.33

0.937

Persistence

11d

Half-life
σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.3881
0.37
α

ARCH

Response to squared shocks

0.0082
0.00
β

GARCH

Volatility persistence

0.9223
6.42***
γ

leverage

Additional response to negative shocks

1.0000
0.00
δ

power

Transformation power

1.8701
1.33

Persistence:

0.937

Half-life:

11 days