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V-Lab

1Y US Treasury CMT 1 Year GJR-GARCH Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Thursday, September 24th, 2026

1 Day

15.58%

increased by 0.17%

1 Week

15.74%

increased by 0.33%

1 Month

16.37%

increased by 0.96%

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

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of 1Y US Treasury CMT 1 Year GJR-GARCH

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 1386294 trading days (~5501.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 130% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~1386294 daysLeverage: Negative returns increase volatility 130% more than positive returns
ParamValuet-stat
ωconst0.0100
3.30***
αARCH0.0438
5.61***
βGARCH0.9278
122.69***
γleverage0.0568
3.30***

1.000

Persistence

1386294d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0100
3.30***
α

ARCH

Response to squared shocks

0.0438
5.61***
β

GARCH

Volatility persistence

0.9278
122.69***
γ

leverage

Additional response to negative shocks

0.0568
3.30***

Persistence:

1.000

Half-life:

1386294 days