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V-Lab

20Y US Treasury CMT 20 Year GJR-GARCH Volatility Analysis

Volatility prediction for Monday, November 9th, 2026

1 Day

15.99%

decreased by 0.25%

1 Week

16.04%

decreased by 0.20%

1 Month

16.20%

decreased by 0.04%

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 20Y US Treasury CMT 20 Year GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 1, 1993 to Nov 6, 2026

Model Insight

With persistence 0.999, volatility shocks have a half-life of 825 trading days (~3.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 158% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~825 daysLeverage: Negative returns increase volatility 158% more than positive returns
ParamValuet-stat
ωconst0.0035
1.15
αARCH0.0199
4.52***
βGARCH0.9635
218.93***
γleverage0.0314
2.45**

0.999

Persistence

825d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0035
1.15
α

ARCH

Response to squared shocks

0.0199
4.52***
β

GARCH

Volatility persistence

0.9635
218.93***
γ

leverage

Additional response to negative shocks

0.0314
2.45**

Persistence:

0.999

Half-life:

825 days