Nuveen Impact Bond ETF (NUIB) is an exchange-traded fund in the Intermediate Core Plus Bond category. It has $44.38M in assets and an expense ratio of 0.37%. Under normal conditions, the fund invests at least 80% of its assets in impact bonds. It primarily invests in a broad range of investment-grade bonds and fixed-income securities, including, but not limited to, U.S. government securities, corporate bonds, taxable municipal securities and mortgage-backed or other asset-backed securities. It may also invest in other fixed-income securities, including those of non-investment-grade quality.