Barrons.com
Municipal bond investors don’t seem concerned about the threat of inflation or higher rates because they are accepting rock-bottom yields and record-tight yield relationships relative to U.S. Treasuries. Top-grade munis offer little or no after-tax yield benefits to investors—even those in higher tax brackets. Several factors have driven the strength in munis this year, including record monthly inflows of $12.5 billion into muni mutual funds during January and a relatively light new issuance.