The ProShares - DJ Brookfield Global Infrastructure ETF (TOLZ) aims to track an index composed of companies worldwide that are exclusively focused on infrastructure. These "pure-play" firms generate their primary revenue from owning and operating essential infrastructure assets, which are typically characterized by their ability to produce stable and long-term cash flows. Under standard market conditions, the fund allocates at least 80% of its total assets to the securities that constitute this index. Investors should be aware that this fund operates as a non-diversified investment.