The BlackRock Taxable Municipal Bond Trust is a closed-ended investment fund sponsored by BlackRock, Inc., and expertly managed by BlackRock Advisors, LLC. This trust primarily allocates its capital within the United States' fixed income markets. Its core holdings are taxable municipal securities, notably including Build America Bonds. Beyond this, the fund diversifies its portfolio with investments in tax-exempt securities, U.S. Treasury obligations, debt from U.S. government agencies and instrumentalities, and corporate debt instruments. Previously, it operated under the name BlackRock Build America Bond Trust. Established on August 27, 2010, the trust is domiciled within the United States.