ProShares DJ Brookfield Global Infrastructure ETF (TOLZ US) – Portfolio Construction MethodologyThe underlying Dow Jones Brookfield Global Infrastructure Composite Index offers global developed-market exposure to owners/operators of pure-play infrastructure assets. Companies qualify only if ≥70% of cash flows are from eligible infrastructure lines (airports, toll roads, ports, communications, electricity T&D, oil & gas storage/transport, water); ongoing inclusion uses customary buffer tests, and listings mu ...