美股BKLN是什么基金？？？

Fund Summary

The investment seeks investment results that generally correspond (before fees and expenses) to the price and yield of the S&P/LSTA U.S. Leveraged Loan 100 Index (the "underlying index"). The fund generally will invest at least 80% of its net assets (plus any borrowings for investment purposes) in senior loans that comprise the underlying index. Banks and other lending institutions generally issue senior loans to corporations, partnerships or other entities ("borrowers"). These borrowers operate in a variety of industries and geographic regions, including foreign countries. It is non-diversified.
这个是该基金的简介，看字面是以信贷为主要投资方式的一只基金，基准波动以标普/LSTA美国杠杆贷款100指数为主

POWERSHARES SENIOR LOAN 现在24.85-24.98，是这个嘛？