In the week ended August 2, the weekly average yield to maturity of the Bond Buyer Municipal Bond Index rose to 4.01x% from 3.99% the previous week. The BB40 Index is based on the price of 40 long-term bonds.

The Bond Buyer's 20-Bond GO Index of 20-year general obligation yields increased five basis points to 3.95% from 3.90% the previous week. It is at its highest level since May 17, when it was also at 3.95%.

The 11-Bond GO Index of higher-grade 11-year GOs gained five basis points to 3.43% from 3.38% the previous week. It is at its highest level since 11 weeks ago, when it was at 3.43%.

The Bond Buyer's Revenue Bond Index jumped five basis points to 4.45% from 4.40% last week. It is at its highest level since April 26, when it was at 4.46%.

The yield on the U.S. Treasury's 10-year note was flat at 2.99%, while the yield on the 30-year Treasury inched up to 3.12% from 3.11%.

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