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V-Lab

Singapore Dollar GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, November 13th, 2026

1 Day

3.46%

increased by 0.13%

1 Week

3.48%

increased by 0.15%

1 Month

3.55%

increased by 0.22%

Analysis last updated: Thursday, November 12, 2026 at 07:22 PM UTC

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Date Range:

from

11/12/2024

to

11/12/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Singapore Dollar GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Nov 6, 2026

Model Insight

With persistence 0.994, volatility shocks have a half-life of 107 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 3.95 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.994, shock half-life ~107 daysv = 3.95 · fat tails
ParamValuet-stat
ωlong-run0.0939
1.03
αscore0.0469
12.72***
βpersistence0.9936
161.48***
νDF3.9495
3.74***

0.994

Persistence

107d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

0.0939
1.03
α

score

Weight on the scaled score

0.0469
12.72***
β

persistence

Volatility persistence

0.9936
161.48***
ν

DF

Student-t tail thickness

3.9495
3.74***

Persistence:

0.994

Half-life:

107 days