The investment seeks to track the performance of the Bloomberg Barclays US Corporate High Yield Total Return Index. Under normal circumstances, in seeking to track the index's performance, the fund generally purchases a representative sample of the securities comprising the index. By using a sampling process, it typically will not invest in all of the securities in the index. The Bloomberg Barclays US Corporate High Yield Total Return Index is designed to measure the U.S. dollar-denominated, high yield (junk), fixed-rate, taxable corporate bond market. The fund is non-diversified.