In the week ended July 20, the weekly average yield to maturity of the Bond Buyer Municipal Bond Index fell six basis points to 4.05% from 4.11% the previous week. The BB40 Index is based on the price of 40 long-term bonds.
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The Bond Buyer's 20-Bond GO Index of 20-year general obligation yields decreased 10 basis points to 3.51% from 3.61% the prior week. It is at its lowest level since Nov. 3 when it was at 3.27%.
The 11-Bond GO Index of higher-grade 20-year GO was 10 basis points lower to 3.02% from 3.12% the previous week. It is at its lowest level since 38 weeks ago, when it was at 2.85%.
The Bond Buyer's Revenue Bond Index was down seven basis points to 3.70% from 3.77% last week. It is at its lowest level since June 22, when it was at 3.70%.
The yield on the U.S. Treasury's 10-year note was eight basis points lower to 2.27% from 2.35%, while the yield on the Treasury's 30-year bond decreased nine basis points to 2.83% from 2.92% the previous week.