The weekly average yield to maturity of The Bond Buyer Municipal Bond Index, which is based on 40 long-term bond prices, decreased four basis points to 4.40% for the week ended July 30 from 4.44% in the previous week.
The Bond Buyer's 20-Bond GO Index of 20-year general obligation was unchanged at 3.75% from the week ended July 23. It is at its lowest level since May 28, when it stood at 3.73%.
The 11-Bond GO Index of higher-grade 20-year GO yields fell one basis point to 3.27% from 3.28% from the prior week. It is at its lowest level since Jan. 29, when it stood at 3.21%.
The Bond Buyer's Revenue Bond Index dropped two basis points to 4.13%, from 4.15% from the week ended July 23. It is at its lowest level in 25 weeks, when it stood at 4.06%.
The yield on the U.S. Treasury's 10-year note was unchanged at 2.27%, while the yield on the Treasury's 30-year bond was down one basis point to 2.96% from 2.97% the week beforehand.