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S&P Asia 50 CME GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, October 9th, 2026

1 Day

23.33%

increased by 1.10%

1 Week

23.40%

increased by 1.17%

1 Month

23.70%

increased by 1.47%

Analysis last updated: Saturday, October 10, 2026 at 02:30 AM UTC

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Date Range:

from

10/08/2024

to

10/08/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P Asia 50 CME GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1998 to Oct 8, 2026

Model Insight

With persistence 0.999, volatility shocks have a half-life of 588 trading days (~2.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 7.80 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~588 daysv = 7.80 · fat tails
ParamValuet-stat
ωconst8.0851
1.57
αARCH0.0604
13.63***
βGARCH0.9988
1,527.25***
νDF7.7955
1.76*

0.999

Persistence

588d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

8.0851
1.57
α

ARCH

Response to squared shocks

0.0604
13.63***
β

GARCH

Volatility persistence

0.9988
1,527.25***
ν

DF

Student-t tail thickness

7.7955
1.76*

Persistence:

0.999

Half-life:

588 days