Strategy. Delaware Investments Fund Advisers (DIFA) serves as the Funds sub-adviser. In managing the Fund, DIFA may utilize sub-sub-adviser Macquarie Investment Management Global Limited, which is an affiliate of DIFA (collectively, the Sub-Adviser). The Fund invests primarily in securities of companies that are principally engaged in the real estate industry. The Fund, under normal circumstances, will invest at least 80% of its assets in real estate investment trusts (REITs) (80% policy). In selecting investments, the Sub-Adviser generally focuses on its expectations regarding what it considers to be the key factors in determining equity prices - company earnings, earnings quality, valuation measures and momentum. To be able to implement its investment philosophy the Sub-Adviser will rely on a systematic process to exploit … Show more… Delaware Investments Fund Advisers (DIFA) serves as the Funds sub-adviser. In managing the Fund, DIFA may utilize sub-sub-adviser Macquarie Investment Management Global Limited, which is an affiliate of DIFA (collectively, the Sub-Adviser). The Fund invests primarily in securities of companies that are principally engaged in the real estate industry. The Fund, under normal circumstances, will invest at least 80% of its assets in real estate investment trusts (REITs) (80% policy). In selecting investments, the Sub-Adviser generally focuses on its expectations regarding what it considers to be the key factors in determining equity prices - company earnings, earnings quality, valuation measures and momentum. To be able to implement its investment philosophy the Sub-Adviser will rely on a systematic process to exploit opportunities using a number of quantitative, event driven and fundamental investment strategies within a risk aware portfolio construction framework. The Funds 80% policy is nonfundamental and may be changed without shareholder approval. Fund shareholders would be given at least 60 days notice prior to any such change. Show less