The weekly average yield to maturity of The Bond Buyer Municipal Bond Index, which is based on 40 long-term bond prices, fell to 3.74% from 3.75% the week before.
The Bond Buyer's 20-bond GO Index of 20-year general obligation yields fell five basis points to 3.51% from 3.56% the week before. It is at its lowest level since Dec. 14, 2017, when it was at 3.41%.
The 11-bond GO Index of higher-grade 11-year GOs dove five basis points to 3.05% from 3.10% the previous week. It is at its lowest level since Jan. 18, 2018, when it was at 3.02%.
The Bond Buyer's Revenue Bond Index dropped five basis points to 4.00% 4.05% from the week before. It is at its lowest level since Jan. 4, 2018, when it was at 3.92%.
The yield on the U.S. Treasury's 10-year note was lower to 2.23% from 2.31%, while the yield on the 30-year Treasury sunk to 2.65% from 2.75%.