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Miami International Hold Inc GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, October 23rd, 2026

1 Day

43.87%

increased by 0.70%

1 Week

43.71%

increased by 0.54%

1 Month

43.26%

increased by 0.09%

Analysis last updated: Thursday, October 22, 2026 at 09:43 PM UTC

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Date Range:

from

10/22/2024

to

10/22/2026

6M ·

1Y ·

All

graph of Miami International Hold Inc GAS-GARCH-T

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

Model Insight

Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days. Returns follow a Student-t distribution with v = 12.24 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 12-day half-lifev = 12.24 · fat tails
ParamValuet-stat
ωlong-run7.1220
0.83
αscore0.0198
0.29
βpersistence0.9425
6.42***
νDF12.2378
0.01

0.942

Persistence

12d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

7.1220
0.83
α

score

Weight on the scaled score

0.0198
0.29
β

persistence

Volatility persistence

0.9425
6.42***
ν

DF

Student-t tail thickness

12.2378
0.01

Persistence:

0.942

Half-life:

12 days