iShares National Muni Bond ETF

iShares National Muni Bond ETF is an exchange-traded fund that seeks to track the performance of an index composed of investment-grade U.S. municipal bonds. It provides investors with diversified exposure to the national municipal bond market, aiming to deliver tax-exempt income from a broad portfolio of bonds issued by states, cities, counties, and other municipal entities across the United States. The fund focuses on AMT-free municipal securities, which are exempt from federal alternative minimum tax, and maintains a portfolio typically featuring thousands of holdings with an average maturity around seven years and effective duration of approximately six years. Key sectors include general obligation bonds, revenue bonds from utilities, transportation, education, and housing authorities, with top exposures to issuers like California, New York, and Texas municipalities. Managed by BlackRock with a low expense ratio, iShares National Muni Bond ETF plays a significant role in fixed income markets by offering a convenient, liquid vehicle for accessing the tax-advantaged muni sector, appealing to those seeking stable income streams from high-quality public finance debt.