Strategy. Under normal market conditions, the Portfolio invests at least 80% of its net assets, plus borrowings for investment purposes, in equity securities of U.S. companies. The Portfolios Sub-Adviser employs a combination of top-down and bottom-up investment processes with the goal of identifying, based on its internal research and analysis, the most attractive U.S. companies that fit into sustainable investment themes. For this Portfolio, a U.S. company is any company that is organized in or has substantial business activities in the United States. Through its top down process, the Sub-Adviser identifies sustainable investment themes that are broadly consistent with achieving the United Nations Sustainable Development Goals (SDGs), which generally address challenges relating to economic prosperity, environmental sustainability, and social inclusion. The … Show more… Under normal market conditions, the Portfolio invests at least 80% of its net assets, plus borrowings for investment purposes, in equity securities of U.S. companies. The Portfolios Sub-Adviser employs a combination of top-down and bottom-up investment processes with the goal of identifying, based on its internal research and analysis, the most attractive U.S. companies that fit into sustainable investment themes. For this Portfolio, a U.S. company is any company that is organized in or has substantial business activities in the United States. Through its top down process, the Sub-Adviser identifies sustainable investment themes that are broadly consistent with achieving the United Nations Sustainable Development Goals (SDGs), which generally address challenges relating to economic prosperity, environmental sustainability, and social inclusion. The Sub-Adviser currently focuses on three primary investment themes climate, health, and empowerment but the focus may change over time based on the Sub-Advisers research. Within each of these primary investment themes, the Sub-Adviser identifies sub-themes to further determine the investment opportunities that meet the Portfolios criteria for sustainable investments. A company that derives at least 25% of its total revenues from activities that the Sub-Adviser believes are consistent with the achievement of the SDGs meets such criteria, although many of the companies in which the Portfolio invests derive a much greater portion of their revenues from such activities. Examples of sub-themes within climate currently include cleaner energy and resource efficiency, sanitation and recycling, and sustainable transportation. Examples of sub-themes within health currently include access to quality care, food security and clean water, medical innovation, and well being. Examples of sub-themes within empowerment currently include education and employment services, financial security and inclusion, information and communication technologies, and sustainable infrastructure. These primary investment themes and sub-themes are subject to change. After the Sub-Adviser identifies a target universe of companies that meet the Portfolios criteria for sustainable investments, the Sub-Adviser engages in a detailed, bottom-up fundamental analysis of individual companies. The analysis focuses on a companys financial strength and prospective earnings growth, quality of management and whether management is aligned with stakeholders, and valuation, and incorporates an evaluation of a companys opportunities and risks relating 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. While the Sub-Adviser emphasizes focusing on individual companies with favorable ESG attributes over the use of broad-based negative screens (e.g., disqualifying business activities) 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 Portfolio seeks to own a portfolio of high quality companies whose products and services contribute to the achievement of one or more of the SDGs. The Portfolio generally invests in approximately 30 to 60 companies. The Portfolio may invest in companies of any size; however, it invests primarily in mid- to large-capitalization companies. For this Portfolio, issuers with market capitalizations between $2 billion and $5 billion are considered mid-capitalization while those with market capitalizations above $5 billion are considered large-capitalization. The Portfolio may invest up to 10% of its assets in foreign securities. Show less