GBF iShares Government/Credit Bond ETF

The underlying index measures the performance ofU. S. dollar-denominatedU. S.

Treasury bonds, government-related bonds and investment-gradeU. S. corporate bonds that have a remaining maturity of greater than or equal to one year.

The fund will invest at least 80% of its assets in the component securities of the underlying index, and the fund will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that the advisor believes will help the fund track the underlying index.