Level Chart

Basic Info

US Corporate Master Option-Adjusted Spread is at 0.90%, compared to 0.91% the previous market day and 0.91% 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 0.90%
Latest Period Mar 19 2026
Last Updated Mar 23 2026, 09:39 EDT
Long Term Average 1.47%
Average Growth Rate 3.90%
Value from The Previous Market Day 0.91%
Change from The Previous Market Day -1.10%
Value from 1 Year Ago 0.91%
Change from 1 Year Ago -1.10%
Frequency Market Daily
Unit Percent
Adjustment N/A

Historical Data

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Date Value
March 19, 2026 0.90%
March 18, 2026 0.91%
March 17, 2026 0.92%
March 16, 2026 0.94%
March 13, 2026 0.93%
March 12, 2026 0.91%
March 11, 2026 0.88%
March 10, 2026 0.84%
March 09, 2026 0.85%
March 06, 2026 0.84%
March 05, 2026 0.82%
March 04, 2026 0.82%
March 03, 2026 0.84%
March 02, 2026 0.85%
February 28, 2026 0.86%
February 27, 2026 0.85%
February 26, 2026 0.82%
February 25, 2026 0.80%
February 24, 2026 0.81%
February 23, 2026 0.80%
February 20, 2026 0.78%
February 19, 2026 0.79%
February 18, 2026 0.78%
February 17, 2026 0.80%
February 16, 2026 0.79%
Date Value
February 13, 2026 0.79%
February 12, 2026 0.78%
February 11, 2026 0.77%
February 10, 2026 0.77%
February 09, 2026 0.76%
February 06, 2026 0.76%
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%

Basic Info

US Corporate Master Option-Adjusted Spread is at 0.90%, compared to 0.91% the previous market day and 0.91% 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 0.90%
Latest Period Mar 19 2026
Last Updated Mar 23 2026, 09:39 EDT
Long Term Average 1.47%
Average Growth Rate 3.90%
Value from The Previous Market Day 0.91%
Change from The Previous Market Day -1.10%
Value from 1 Year Ago 0.91%
Change from 1 Year Ago -1.10%
Frequency Market Daily
Unit Percent
Adjustment N/A