For example, the iShares National AMT-Free Muni Bond ETF (NYSEArca: MUB), which has a 0.25% expense ratio and a 4.71 year duration, shows a 1.65% 30-day SEC yield or a 2.91% taxable equivalent SEC yield for those in the highest income bracket.

“October brought a 20% jump in the number of requests for new municipal bond security identifiers, according to the CUSIP Issuance Trends Report. It was the first increase in five months,” reports Amey Stone for Barron’s. “A total of 1,111 new municipal bond identifier requests were made in October. The most requests came from Texas, New York and California.”

Municipal bond funds are attractive fixed-income investments because they are exempt from federal income taxes. Consequently, the muni ETFs provide enticing tax-exempt yields.

iShares National AMT-Free Muni Bond ETF