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ICE BofAML U.S. Bond Market 6 Month Option Volatility Estimate Index Spline-GARCH Volatility Analysis

Volatility prediction for Friday, October 16th, 2026

1 Day

50.12%

decreased by 1.37%

1 Week

54.35%

increased by 2.86%

1 Month

61.35%

increased by 9.86%

Analysis last updated: Friday, October 16, 2026 at 11:49 PM UTC

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Date Range:

from

10/15/2024

to

10/15/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of ICE BofAML U.S. Bond Market 6 Month Option Volatility Estimate Index SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 26, 2008 to Oct 8, 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 5 trading days.

τ

Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst2.1302
4.94***
αARCH0.1766
4.80***
βGARCH0.6899
15.59***
∑γi Spline Coefficients
K=8
γ10.1966
1.70*
γ2-0.1529
-0.86
γ3-0.2319
-1.32
γ40.4930
2.73***
γ5-0.4806
-2.94***
γ60.2701
1.68*
γ7-0.3530
-2.30**
γ80.8965
4.89***

0.866

Persistence

5d

Half-life
τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.1302
4.94***
α

ARCH

Response to squared shocks

0.1766
4.80***
β

GARCH

Volatility persistence

0.6899
15.59***
∑γi Spline Coefficients
K=8
γ10.1966
1.70*
γ2-0.1529
-0.86
γ3-0.2319
-1.32
γ40.4930
2.73***
γ5-0.4806
-2.94***
γ60.2701
1.68*
γ7-0.3530
-2.30**
γ80.8965
4.89***

Persistence:

0.866

Half-life:

5 days