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V-Lab

ICE BofAML U.S. Bond Market 3 Month Option Volatility Estimate Index Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

35.71%

decreased by 0.34%

1 Week

35.82%

decreased by 0.23%

1 Month

36.09%

increased by 0.04%

Analysis last updated: Friday, September 4, 2026 at 11:28 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of ICE BofAML U.S. Bond Market 3 Month Option Volatility Estimate Index S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 26, 1995 to Aug 27, 2026

Model Insight

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 8 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst0.6281
4.58***
αARCH0.0992
4.78***
βGARCH0.8207
19.84***
γi Spline Coefficients
K=8
γ1-0.0387
-0.45
γ20.0171
0.13
γ30.0629
0.92
γ4-0.0789
-1.68*
γ50.0156
0.33
γ60.1118
2.56**
γ7-0.1845
-4.97***
γ80.1331
4.99***

0.920

Persistence

8d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.6281
4.58***
α

ARCH

Response to squared shocks

0.0992
4.78***
β

GARCH

Volatility persistence

0.8207
19.84***
γi Spline Coefficients
K=8
γ1-0.0387
-0.45
γ20.0171
0.13
γ30.0629
0.92
γ4-0.0789
-1.68*
γ50.0156
0.33
γ60.1118
2.56**
γ7-0.1845
-4.97***
γ80.1331
4.99***

Persistence:

0.920

Half-life:

8 days