AAM Low Duration Preferred and Income Securities ETF (AAM Low Duration Preferred and ) ETF

The index measures the performance of exchange-listed, U.S. dollar-denominated preferred securities and hybrid securities listed on the New York Stock Exchange ("NYSE") or NASDAQ Capital Market ("NASDAQ") with an option-adjusted duration of less than five years. Under normal circumstances, at least 80% of the fund’s net assets, plus borrowings for investment purposes, will be invested in preferred and income securities.