Level Chart

Basic Info

US Corporate Master Option-Adjusted Spread is at 0.76%, compared to 0.75% the previous market day and 0.83% last year. This is lower than the long term average of 1.47%.

The ICE BofA Option-Adjusted Spreads (OASs) are the calculated spreads between a computed OAS index of all bonds in a given rating category and a spot Treasury curve. An OAS index is constructed using each constituent bond's OAS, weighted by market capitalization. The Corporate Master OAS uses an index of bonds that are considered investment grade (those rated BBB or better). When the last calendar day of the month takes place on the weekend, weekend observations will occur as a result of month ending accrued interest adjustments.

Stats

Last Value 0.76%
Latest Period Feb 05 2026
Last Updated Feb 6 2026, 14:04 EST
Next Release Feb 9 2026, 14:00 EST
Long Term Average 1.47%
Average Growth Rate 3.34%
Value from The Previous Market Day 0.75%
Change from The Previous Market Day 1.33%
Value from 1 Year Ago 0.83%
Change from 1 Year Ago -8.43%
Frequency Market Daily
Unit Percent
Adjustment N/A

Historical Data

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Date Value
February 05, 2026 0.76%
February 04, 2026 0.75%
February 03, 2026 0.74%
February 02, 2026 0.74%
January 31, 2026 0.75%
January 30, 2026 0.74%
January 29, 2026 0.74%
January 28, 2026 0.73%
January 27, 2026 0.73%
January 26, 2026 0.74%
January 23, 2026 0.73%
January 22, 2026 0.73%
January 21, 2026 0.74%
January 20, 2026 0.75%
January 19, 2026 0.75%
January 16, 2026 0.75%
January 15, 2026 0.76%
January 14, 2026 0.77%
January 13, 2026 0.77%
January 12, 2026 0.78%
January 09, 2026 0.78%
January 08, 2026 0.79%
January 07, 2026 0.79%
January 06, 2026 0.79%
January 05, 2026 0.79%
Date Value
January 02, 2026 0.79%
December 31, 2025 0.79%
December 30, 2025 0.79%
December 29, 2025 0.79%
December 26, 2025 0.79%
December 24, 2025 0.79%
December 23, 2025 0.79%
December 22, 2025 0.80%
December 19, 2025 0.80%
December 18, 2025 0.81%
December 17, 2025 0.81%
December 16, 2025 0.81%
December 15, 2025 0.80%
December 12, 2025 0.80%
December 11, 2025 0.78%
December 10, 2025 0.78%
December 09, 2025 0.79%
December 08, 2025 0.78%
December 05, 2025 0.79%
December 04, 2025 0.80%
December 03, 2025 0.81%
December 02, 2025 0.81%
December 01, 2025 0.82%
November 30, 2025 0.82%
November 28, 2025 0.82%

Basic Info

US Corporate Master Option-Adjusted Spread is at 0.76%, compared to 0.75% the previous market day and 0.83% last year. This is lower than the long term average of 1.47%.

The ICE BofA Option-Adjusted Spreads (OASs) are the calculated spreads between a computed OAS index of all bonds in a given rating category and a spot Treasury curve. An OAS index is constructed using each constituent bond's OAS, weighted by market capitalization. The Corporate Master OAS uses an index of bonds that are considered investment grade (those rated BBB or better). When the last calendar day of the month takes place on the weekend, weekend observations will occur as a result of month ending accrued interest adjustments.

Stats

Last Value 0.76%
Latest Period Feb 05 2026
Last Updated Feb 6 2026, 14:04 EST
Next Release Feb 9 2026, 14:00 EST
Long Term Average 1.47%
Average Growth Rate 3.34%
Value from The Previous Market Day 0.75%
Change from The Previous Market Day 1.33%
Value from 1 Year Ago 0.83%
Change from 1 Year Ago -8.43%
Frequency Market Daily
Unit Percent
Adjustment N/A