V-Lab
10Y US Treasury CMT 10 Year Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Thursday, September 24th, 2026
1 Day
19.07%
increased by 2.70%
1 Week
19.18%
increased by 2.81%
1 Month
19.60%
increased by 3.23%
Analysis last updated: Thursday, September 24, 2026 at 03:00 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Sep 18, 2026Model Insight
With persistence 0.999, volatility shocks have a half-life of 618 trading days (~2.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
High persistence: persistence 0.999, shock half-life ~618 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.9832 | 3.90*** |
| αARCH | 0.0475 | 9.91*** |
| βGARCH | 0.9514 | 193.76*** |
Spline Coefficients
K=1
| γ1 | -0.0005 | -1.68* |
0.999
Persistence618d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9832 | 3.90*** |
α ARCH Response to squared shocks | 0.0475 | 9.91*** |
β GARCH Volatility persistence | 0.9514 | 193.76*** |
Spline Coefficients
K=1
| γ1 | -0.0005 | -1.68* |
Persistence:
0.999
Half-life:
618 days
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