A look at the AP Municipal Bond Index for Tuesday, Aug. 22:

BIGGEST MOVER: 30-year bonds. Yield dropped 2 basis points over the last week to 2.85 percent.

TWO-YEAR: Yield increased less than a basis point to 0.94 percent. The two-year/10-year spread is 131 basis points, compared with 132 basis points a week ago. The two-year/30-year spread is 191 basis points, down from 194 basis points a week ago.

10-YEAR: Yield fell less than a basis point to 2.25 percent, compared with 2.22 percent for a 10-year Treasury. The gap between 10-year municipal bonds and Treasurys has been widening over the last week. It was 1 basis point on Aug. 15. The 10-year/30-year spread for municipal bonds is 60 basis points.

30-YEAR: Yield rose by less than a basis point to 2.85 percent, compared with 2.79 percent for a 30-year Treasury.

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AP created this story using data from Municipal Bond Information Services and the U.S. Department of the Treasury. Learn more about the AP Municipal Bond Index at http://mbis.com/

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Keywords: Muni Bonds