The weekly average yield to maturity of the Bond Buyer Municipal Bond Index, which is based on 40 long-term bond prices, was down four basis points from last week at 4.48% for the week ending Aug. 14.
The 20-Bond GO Index of 20-year general obligation yields fell seven basis points to 4.24%, the lowest since June 6, 2013.
The 11-Bond GO Index of higher-grade 20-year GO yields fell seven basis points to 3.97%, the lowest since June 13, 2013.
The Bond Buyer's Revenue Bond Index, which measures 25-year revenue bond yields, lost three basis points to 4.86%, the lowest since June 19.
The yield on the U.S. Treasury's 10-year note dropped one basis point to 2.41%, the lowest since June 20, 2013.
The yield on the Treasury's 30-year bond slipped three basis points to 3.20%, the lowest since May 23, 2013.
