WFBIX

About WFBIX

The iShares U.S. Aggregate Bond Index Fund Class K is an open-end mutual fund focused on tracking the total return performance of the Bloomberg U.S. Aggregate Bond Index. Its primary objective is to offer broad-based exposure to the U.S. investment-grade bond market, encompassing U.S. Treasury securities, agency mortgage-backed debt, and corporate bonds. The fund implements a passively managed strategy, typically allocating at least 90% of its assets to securities included in the benchmark index, resulting in a highly diversified portfolio with thousands of holdings. With a low expense ratio and institutional share class structure, this fund appeals to investors seeking efficient, cost-effective fixed income exposure. Notable features include monthly income distributions and significant positions in U.S. government and agency securities, alongside corporate debt from major financial institutions. As one of the core holdings in many bond portfolios, the fund serves a key role in providing broad market coverage, stability, and income generation within the fixed income sector.