Strategy. The Portfolio invests primarily in equity securities, principally common stocks, of US companies selected using the Investment Managers process employed in implementing the Portfolios investment strategy, described below. The market capitalization of companies in which the Portfolio invests may vary with market conditions, but typically the Portfolio invests in companies with market capitalizations over $1 billion. The Investment Managers process first identifies companies within the investable universe, which are companies that the Investment Manager believes are capable of (1) generating and maintaining high financial productivity ( i.e ., the return a company generates) for periods in excess of market expectations, or (2) capable of improving financial productivity to a greater extent or more expeditiously than the market expects ( i.e. … Show more… The Portfolio invests primarily in equity securities, principally common stocks, of US companies selected using the Investment Managers process employed in implementing the Portfolios investment strategy, described below. The market capitalization of companies in which the Portfolio invests may vary with market conditions, but typically the Portfolio invests in companies with market capitalizations over $1 billion. The Investment Managers process first identifies companies within the investable universe, which are companies that the Investment Manager believes are capable of (1) generating and maintaining high financial productivity ( i.e ., the return a company generates) for periods in excess of market expectations, or (2) capable of improving financial productivity to a greater extent or more expeditiously than the market expects ( i.e. , are undervalued) and which exhibit good expectations for future cash flows and profitability. Next, the Investment Manager reduces the investable universe using fundamental analysis and research on the companies identified. In further narrowing the investable universe to select companies for investment by the Portfolio, the Investment Manager considers both (a) the financial sustainability of the company as a businessa company whose financial productivity is likely to be supported or enhanced in the future as a result of the move toward a more sustainable world (such as by considering the nature of the products and/or services that the company provides, from the perspective of environmental and social factors that impact financial productivity)and (b) how the company counters potential risks arising as a result of environmental and social concerns that may be material to the particular companies or the industries or sectors in which they operate (collectively, Sustainable Companies). The Investment Manager uses its proprietary sustainability analysis methodology to assess each company considered for investment, to the extent relevant to the company or its industry or sector, against the specific sustainability factors listed below (and other factors that may be considered relevant to the company or its industry), divided into the three categories of Human Capital, Natural Capital and Corporate Governance. Human Capital: the extent to which the company follows best practices in managing its workforce in a responsible manner, such as health and safety considerations and diversity and inclusion policies; acts responsibly in terms of the impact its business operations, products and services have on the broader community; aims to ensure its suppliers act responsibly; and endeavors to treat its customers fairly and responsibly, for example by having appropriate product safety and data privacy and security standards. Natural Capital: the extent to which the company, and its supply chains, are reliant on using resources which generate significant environmental impact; and actively seek to reduce the impact they have on the environment. Corporate Governance: the extent to which the companys board composition and policies, executive management composition and compensation, and the exercise of shareholder rights and voting powers are in line with current best practices. Companies considered by the Investment Manager to be significantly involved in the manufacture of products or the provision of services that are broadly recognized as unsustainable by society ( e.g. , the production of tobacco, the generation, extraction and/or refining of certain fossil fuels or the production of unconventional weapons) generally will not fall within the investable universe for the Portfolio. However, it is possible that the Investment Manager may determine, after a combined consideration of its assessment of such a companys financial productivity potential as described above and the results of the Investment Managers sustainability analysis methodology, that such a company is an appropriate investment for the Portfolio. The Portfolio may, however, invest in companies that provide equipment and services to the energy and mining sectors. Under normal circumstances, the Portfolio invests at least 80% of its assets in equity securities of US Sustainable Companies. The Portfolio may invest up to 20% of its assets in securities of non-US companies, including those in emerging markets. Although the Portfolio is classified as diversified under the Investment Company Act of 1940, as amended, it may invest in a smaller number of issuers than other, more diversified, investment portfolios. Show less