Strategy. The Fund generally will invest at least 90% of its total assets in the securities that comprise the Underlying Index. Strictly in accordance with its guidelines and mandated procedures, MSCI Inc. (the Index Provider) compiles, maintains and calculates the Underlying Index, which is comprised of companies that the Index Provider has determined provide exposure to the environmental impact theme of green building pursuant to its index methodology. The index methodology defines green building to include the design, construction, redevelopment, retrofitting, or acquisition of green-certified properties to promote mechanisms for raising capacity for effective climate change mitigation and adaptation. The Underlying Index is composed of securities that are also components of the MSCI ACWI Investable Market Index (the Parent Index), an … Show more… The Fund generally will invest at least 90% of its total assets in the securities that comprise the Underlying Index. Strictly in accordance with its guidelines and mandated procedures, MSCI Inc. (the Index Provider) compiles, maintains and calculates the Underlying Index, which is comprised of companies that the Index Provider has determined provide exposure to the environmental impact theme of green building pursuant to its index methodology. The index methodology defines green building to include the design, construction, redevelopment, retrofitting, or acquisition of green-certified properties to promote mechanisms for raising capacity for effective climate change mitigation and adaptation. The Underlying Index is composed of securities that are also components of the MSCI ACWI Investable Market Index (the Parent Index), an equity index composed of more than 8,700 securities of large-, mid- and small-capitalization companies located in both developed and emerging market countries around the world. Securities eligible for inclusion in the Underlying Index include American depositary receipts (ADRs), global depositary receipts (GDRs), and real estate investment trusts (REITs). Companies that derive 50% or more of their revenue from green building are eligible for inclusion in the Underlying Index. Such companies are evaluated for their level of involvement in, and strategic commitment to green building, based on the Index Providers internal environmental, social and governance (ESG) rating and score data. Once included in the Underlying Index, securities will remain constituents as long as they continue to meet the eligibility criteria and the revenue they derive from green building does not fall below 40%. The Underlying Index weights its constituents by their free-float adjusted market capitalization. As of December 31, 2024, the Underlying Index was comprised of 95 constituents with market capitalizations ranging from $406.4 million to $20.4 billion. The Fund employs a full replication methodology in seeking to track the Underlying Index, meaning that the Fund generally invests in all of the securities comprising the Underlying Index in proportion to their weightings in the Underlying Index. The Fund is non-diversified and therefore is not required to meet certain diversification requirements under the Investment Company Act of 1940, as amended (the 1940 Act). Concentration Policy. The Fund will concentrate its investments (i.e., invest more than 25% of the value of its net assets) in securities of issuers in any one industry or group of industries only to the extent that the Underlying Index reflects a concentration in that industry or group of industries. The Fund will not otherwise concentrate its investments in securities of issuers in any one industry or group of industries. As of October 31, 2024, the Fund had significant exposure to the real estate sector. The Fund's portfolio holdings, and the extent to which it concentrates its investments, are likely to change over time. Show less