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V-Lab

CDX/CBOE NA Investment Grade 1-Month Volatility Index (BP Volatility) GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, July 24th, 2026

1 Day

108.67%

increased by 22.48%

1 Week

109.33%

increased by 23.14%

1 Month

110.59%

increased by 24.40%

Analysis last updated: Friday, July 24, 2026 at 11:35 AM UTC

Date Range:

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to

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2Y ·

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10Y ·

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graph of CDX/CBOE NA Investment Grade 1-Month Volatility Index (BP Volatility) GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 5, 2012 to Jul 17, 2026

Model Insight

Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days. Returns follow a Student-t distribution with v = 4.97 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

49.4842
12.93***
α

ARCH

Response to squared shocks

0.1130
12.91***
β

GARCH

Volatility persistence

0.8767
89.01***
ν

DF

Student-t tail thickness

4.9750
4.20***

Persistence:

0.877

Half-life:

5 days