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US Dollar to Thai Baht Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

6.69%

increased by 0.45%

1 Week

6.83%

increased by 0.59%

1 Month

7.33%

increased by 1.09%

Analysis last updated: Friday, September 11, 2026 at 08:45 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of US Dollar to Thai Baht S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 6, 1991 to Sep 11, 2026

Model Insight

With persistence 0.994, volatility shocks have a half-life of 109 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

High persistence: persistence 0.994, shock half-life ~109 days
ParamValuet-stat
ωconst0.5801
1.98**
αARCH0.0971
11.21***
βGARCH0.8966
117.00***
γi Spline Coefficients
K=4
γ1-0.0028
-0.36
γ2-0.0028
-0.26
γ30.0151
2.59***
γ4-0.0154
-4.10***

0.994

Persistence

109d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.5801
1.98**
α

ARCH

Response to squared shocks

0.0971
11.21***
β

GARCH

Volatility persistence

0.8966
117.00***
γi Spline Coefficients
K=4
γ1-0.0028
-0.36
γ2-0.0028
-0.26
γ30.0151
2.59***
γ4-0.0154
-4.10***

Persistence:

0.994

Half-life:

109 days