The Fund seeks to track the investment results of the S&P Global Infrastructure Index (the Underlying Index), which is designed to track performance of the stocks of large infrastructure companies in developed or emerging markets (only developed market listings are eligible for stocks of issuers domiciled in emerging markets). The Underlying Index includes companies involved in utilities, energy and transportation infrastructure, such as the management or ownership of oil and gas storage and transportation; airport services; highways and rail tracks; marine ports and services; and electric, gas and water utilities. As of March 31, 2024, the Underlying Index was comprised of securities of companies in the following countries: Australia, Brazil, Canada, China, France, Germany, Italy, Japan, Luxembourg, Mexico, New Zealand, Norway, Singapore, Spain, Switzerland, the United Kingdom (the U.K.) and the U.S. As of March 31, 2024, a significant portion of the Underlying Index is represented by securities of companies in the energy, industrials, infrastructure and utilities industries or sectors. The components of the Underlying Index are likely to change over time.