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V-Lab

30Y US Treasury CMT 30 Year GJR-GARCH Volatility Analysis

Volatility prediction for Monday, November 9th, 2026

1 Day

14.73%

decreased by 0.25%

1 Week

14.77%

decreased by 0.21%

1 Month

14.90%

decreased by 0.08%

Analysis last updated: Saturday, November 7, 2026 at 04:00 AM UTC

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Date Range:

from

11/06/2024

to

11/06/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of 30Y US Treasury CMT 30 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 Nov 6, 2026

Model Insight

With persistence 0.999, volatility shocks have a half-life of 679 trading days (~2.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 157% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~679 daysLeverage: Negative returns increase volatility 157% more than positive returns
ParamValuet-stat
ωconst0.0029
1.23
αARCH0.0204
4.25***
βGARCH0.9625
256.94***
γleverage0.0321
2.27**

0.999

Persistence

679d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0029
1.23
α

ARCH

Response to squared shocks

0.0204
4.25***
β

GARCH

Volatility persistence

0.9625
256.94***
γ

leverage

Additional response to negative shocks

0.0321
2.27**

Persistence:

0.999

Half-life:

679 days