The weekly average yield to maturity of the Bond Buyer Municipal Bond Index, which is based on 40 long-term bond prices, declined 10 basis points to 5.11% for the week ending Sept. 26, 2013. This is the lowest weekly average for the yield to maturity since the week ended Aug. 8, 2013 (seven weeks ago), when it was also 5.11%.

Bond Buyer Indexes

The 20-Bond GO Index of 20-year general obligation yields declined 13 basis points this week, to 4.53%. This is the lowest level for the index since July 18, 2013 (10 weeks ago), when it was 4.52%.

The 11-Bond GO Index of higher-grade 20-year GO yields also dropped 13 basis points this week, to 4.26%, which is its lowest level since July 3, 2013 (12 weeks ago), when it was 4.16%.

The Bond Buyer’s Revenue Bond Index, which measures 30-year revenue bond yields, fell seven basis points this week, to 5.17%. This is its lowest level since Aug. 8, 2013 (seven weeks ago), when it was 5.05%.

The yield on the U.S. Treasury’s 10-year note declined 10 basis points this week, to 2.65%, which is its lowest level since Aug. 8, 2013 (seven weeks ago), when it was 2.59%.

The yield on the Treasury’s 30-year bond dropped 11 basis points this week, to 3.69%, which is its lowest level since Aug. 8, 2013 (seven weeks ago), when it was 3.67%.

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