Strategy. The Portfolio pursues opportunistic growth by investing in a global universe of companies whose business activities the Adviser believes position the company to benefit from certain sustainable investment themes that align with one or more of the United Nations Sustainable Development Goals (SDGs). These themes principally include the advancement of climate, health and empowerment. Under normal circumstances, the Portfolio invests at least 80% of its net assets in equity securities of issuers located throughout the world that satisfy the Portfolios sustainable thematic criteria. An issuer that derives at least 25% of its total revenues from activities consistent with the achievement of the SDGs meets such criteria, although many of the issuers in which the Portfolio invests will derive a much … Show more… The Portfolio pursues opportunistic growth by investing in a global universe of companies whose business activities the Adviser believes position the company to benefit from certain sustainable investment themes that align with one or more of the United Nations Sustainable Development Goals (SDGs). These themes principally include the advancement of climate, health and empowerment. Under normal circumstances, the Portfolio invests at least 80% of its net assets in equity securities of issuers located throughout the world that satisfy the Portfolios sustainable thematic criteria. An issuer that derives at least 25% of its total revenues from activities consistent with the achievement of the SDGs meets such criteria, although many of the issuers in which the Portfolio invests will derive a much greater portion of their revenues from such activities. The Adviser employs a combination of top-down and bottom-up investment processes with the goal of identifying, based on its internal research and analysis, securities of companies worldwide that fit into sustainable investment themes. First, the Adviser identifies through its top-down process the sustainable investment themes. In addition to this top-down thematic approach, the Adviser then uses a bottom-up analysis of individual companies that focuses on prospective earnings growth, valuation, and quality of company management and on evaluating a companys risks, including those related to environmental, social and corporate governance (ESG) factors. ESG factors, which can vary across companies and industries, may include environmental impact, corporate governance, ethical business practices, diversity and employee practices, product safety, supply chain management and community impact. Eligible investments include securities of issuers that the Adviser believes will maximize total return while also contributing to positive societal impact aligned with one or more SDGs. While the Adviser emphasizes company-specific positive selection criteria over broad-based negative screens in assessing a companys exposure to ESG factors, the Portfolio will not invest in companies that derive revenue from direct involvement in adult entertainment, alcohol, coal, controversial weapons, firearms, gambling, genetically modified organisms, military contracting, prisons or tobacco. The Adviser considers a large universe of companies worldwide for investment. The Portfolio typically invests primarily in mid- to large-capitalization companies and invests, to a lesser degree, in small-capitalization companies. The Portfolio invests in securities issued by U.S. and non-U.S. companies from multiple industry sectors in an attempt to maximize opportunity, which should also tend to reduce risk. The Portfolio invests in both developed and emerging market countries. Under normal market conditions, the Portfolio invests significantly (at least 40%unless market conditions are not deemed favorable by the Adviser) in securities of non-U.S. companies. In addition, the Portfolio invests, under normal circumstances, in the equity securities of companies located in at least three countries. The percentage of the Portfolios assets invested in securities of companies in a particular country or denominated in a particular currency varies in accordance with the Advisers assessment of the appreciation potential of such securities. Currency exposures can have a dramatic impact on equity return, significantly adding to returns in some years and greatly diminishing them in others. The Adviser may seek to hedge the currency exposure resulting from a securities position when it finds the currency exposure unattractive. To hedge all or a portion of its currency risk, the Portfolio may from time to time invest in currency-related derivatives, including forward currency exchange contracts, futures contracts, options on futures contracts, swaps and options. Decisions regarding portfolio investments and whether to hedge currency exposure are evaluated separately by the Adviser. The Adviser may also seek investment opportunities by taking long or short positions in currencies through the use of currency-related derivatives. Show less