ALPS Advisors, Inc. (the Adviser) will seek investment results that replicate as closely as possible, before fees and expenses, the performance of the Underlying Index. The Underlying Index is a rules-based index intended to give investors a means of tracking the overall performance of the highest dividend paying real estate investment trusts (REITs) (i.e. Dividend Dogs) in the S-Network Composite US REIT Index, a universe of mainly REITs listed in the United States (the S-Net U.S. REIT), on a segment-by-segment basis. Dividend Dogs refers to the five REITs in each of the nine segments that make up the S-Net U.S. REIT which offer the highest dividend yields.