The weekly average yield to maturity of the Bond Buyer Municipal Bond Index, which is based on 40 long-term bond prices, was down two basis points this past week, to 4.61 for the week ending May 8.
The 20-Bond GO Index of 20-year general obligation yields fell two basis points to 4.31%, the lowest since June 13.
The 11-Bond GO Index of higher-grade 20-year GO yield also slipped one basis point to 4.03%, the lowest since June 13.
The Bond Buyer's Revenue Bond Index, which measures 30-year revenue bond yields, dropped 13 basis point this week, to 4.97%, the lowest since July 18.
The yield on the U.S. Treasury's 10-year note remained at to 2.62%, after falling seven basis points the prior week.
The yield on the Treasury's 30-year bond edged up three basis point to 3.44%, after gaining losing five basis points the week before.
