Skip to main content
V-Lab

ICE BofAML U.S. Bond Market 6 Month Option Volatility Estimate Index APARCH Volatility Analysis

Volatility prediction for Friday, July 17th, 2026

1 Day

36.34%

decreased by 3.03%

1 Week

36.87%

decreased by 2.50%

1 Month

38.50%

decreased by 0.87%

Analysis last updated: Friday, July 17, 2026 at 11:34 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

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

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 26, 2008 to Jul 2, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 100% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets. The volatility power δ = 1.51 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1752
15.19***
α

ARCH

Response to squared shocks

0.1582
23.21***
β

GARCH

Volatility persistence

0.8222
126.49***
γ

leverage

Additional response to negative shocks

-0.2250
-8.40***
δ

power

Transformation power

1.5087
26.57***

Persistence:

0.961

Half-life:

18 days