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V-Lab

30Y US Treasury CMT 30 Year MF2-GARCH Volatility Analysis

Volatility prediction for Thursday, September 24th, 2026

1 Day

12.79%

increased by 0.51%

1 Week

12.85%

increased by 0.57%

1 Month

12.89%

increased by 0.61%

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

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of 30Y US Treasury CMT 30 Year MF2-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 1400 trading days (~5.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: volatility responds almost entirely to negative shocks

σ

MF2-GARCH Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~1400 daysLeverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
mwindow46
αARCH0.0052
1.42
βGARCH0.9791
261.64***
γleverage0.0306
5.50***
λ₁tau intercept1.3739
1.28
λ₂forecast adj.0.4374
1.35
λ₃tau persistence0.0000
0.00

1.000

Persistence

1400d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

46
α

ARCH

Response to squared shocks

0.0052
1.42
β

GARCH

Volatility persistence

0.9791
261.64***
γ

leverage

Additional response to negative shocks

0.0306
5.50***
λ₁

tau intercept

Baseline long-term coefficient

1.3739
1.28
λ₂

forecast adj.

Forecast performance sensitivity

0.4374
1.35
λ₃

tau persistence

Long-term factor persistence

0.0000
0.00

Persistence:

1.000

Half-life:

1400 days