This ETF is designed to mirror the performance of its benchmark index. To achieve this, it allocates a minimum of 80% of its assets directly to the securities that comprise the index. Additionally, at least 90% of its portfolio will be invested in debt instruments similar in type to those found in the underlying index, a strategy BFA employs to ensure close tracking. The benchmark itself is composed of U.S. dollar-denominated, taxable corporate bonds, all of which carry an investment-grade rating and are scheduled to mature between January 1, 2024, and December 15, 2024 (inclusive).