2Y US Treasury CMT 2 Year GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, November 9th, 2026
1 Day
19.15%
1 Week
19.23%
1 Month
19.51%
Analysis last updated: Saturday, November 7, 2026 at 04:01 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Nov 6, 2026Model Insight
With persistence 0.997, volatility shocks have a half-life of 272 trading days (~1.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 9.29 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωlong-run | 4.1075 | 1.94* |
| αscore | 0.0712 | 14.80*** |
| βpersistence | 0.9975 | 709.43*** |
| νDF | 9.2892 | 2.24** |
0.997
Persistence272d
Half-lifeGAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω long-run Long-run variance given a price move | 4.1075 | 1.94* |
α score Weight on the scaled score | 0.0712 | 14.80*** |
β persistence Volatility persistence | 0.9975 | 709.43*** |
ν DF Student-t tail thickness | 9.2892 | 2.24** |
Persistence:
0.997
Half-life:
272 days
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