An investment in the Fund is subject, among other risks, to market risk or the risk that stocks in the portfolio will decline in response to such factors as adverse company news or industry developments or a general economic decline. Concentration in specific sectors such as infrastructure-related securities may involve greater risk and volatility than more diversified investments including greater exposure to adverse economic regulatory, political, legal and other changes affecting such securities. Dividends are not guaranteed. Securities investments in certain markets present additional risks, including currency fluctuation, political and economic instability, lack of liquidity, and differing legal and accounting standards. These risks are magnified in emerging markets. Stocks of small- and mid-cap companies often experience sharper fluctuations than stocks of large-cap companies. The potential use of derivatives involves a high degree of financial risk, including the risk that the loss on a derivative may be greater than the principal amount invested. There is no guarantee that the Fund will meet its investment objective. Past performance is not a reliable guide to future performance.