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V-Lab

1Y US Treasury CMT 1 Year Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Thursday, September 24th, 2026

1 Day

18.38%

increased by 0.48%

1 Week

18.66%

increased by 0.76%

1 Month

19.72%

increased by 1.82%

Analysis last updated: Thursday, September 24, 2026 at 03:00 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of 1Y US Treasury CMT 1 Year S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Sep 18, 2026

Model Insight

With persistence 1.000, volatility shocks have a half-life of 1654 trading days (~6.6 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 1.000, shock half-life ~1654 days
ParamValuet-stat
ωconst1.2281
2.23**
αARCH0.0921
9.15***
βGARCH0.9075
89.88***
γi Spline Coefficients
K=6
γ1-0.0621
-1.73*
γ20.0610
1.12
γ30.1162
3.07***
γ4-0.2635
-7.68***
γ50.2088
6.72***
γ6-0.0627
-2.58***

1.000

Persistence

1654d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2281
2.23**
α

ARCH

Response to squared shocks

0.0921
9.15***
β

GARCH

Volatility persistence

0.9075
89.88***
γi Spline Coefficients
K=6
γ1-0.0621
-1.73*
γ20.0610
1.12
γ30.1162
3.07***
γ4-0.2635
-7.68***
γ50.2088
6.72***
γ6-0.0627
-2.58***

Persistence:

1.000

Half-life:

1654 days