The weekly average yield to maturity of the Bond Buyer Municipal Bond Index, which is based on 40 long-term bond prices, dropped two basis point the week ending September 4 to 4.42%.
The 20-Bond GO Index of 20-year general obligation yields fell eight basis points to 4.09%, the lowest since June 6, 2013.
The 11-Bond GO Index of higher-grade 20-year GO yields increased four basis points to 3.94%, the lowest since June 6, 2013.
The Bond Buyer's 25-bond Revenue Bond Index increased three basis points to 4.83%, the lowest since June 19.
The yield on the U.S. Treasury's 10-year note fell increased seven points to 2.45%, the lowest since June 13, 2013.
The yield on the Treasury's 30-year bond grew 13 basis points to 3.21%, the lowest since May 9, 2013.
