The weekly average yield to maturity of The Bond Buyer Municipal Bond Index, which is based on 40 long-term bond prices, increased four basis points to 4.45% for the week ended May 21 from 4.41% in the previous week.
The Bond Buyer's 20-Bond GO Index of 20-year general obligation was seven basis points higher to 3.81% from 3.74% for the week ended May 14. It is at its highest level since Dec. 4, when it stood at 3.83%.
The 11-Bond GO Index of higher-grade 20-year GO yields rose seven basis points to 3.66% from 3.59% from the prior week. It is at its highest level in 25 weeks, since it stood at 3.68%.
The Bond Buyer's Revenue Bond Index climbed eight basis points to 4.56%, from 4.48% from the week ended May 14. It is at its highest level since Nov.25, when it stood at 4.58%.
The yield on the U.S. Treasury's 10-year note dropped four basis points to 2.19% from 2.23%, while the yield on the Treasury's 30-year bond was down seven basis points to 2.98% from 3.05% the week before.
