Data as of 2/28/2011. All returns for periods longer than one year are annualized.The aforementioned returns assume reinvestment of dividends. Performance data quoted represents past performance, which is no guarantee of future results, and current performance may be lower or higher than the figures shown. The investment return and principal value of an investment will fluctuate with changes in market conditions and other factors so that an investor's shares, when sold, may be worth more or less than their original cost. Claymore Advisors, LLC changed its name to Guggenheim Funds Investment Advisors, LLC. The change marked the next phase of business integration following the acquisition of Claymore by Guggenheim Partners, LLC (“Guggenheim Partners”), announced on October 15, 2009. The Guggenheim Funds business will continue to support the current product lineup of exchange-traded funds (ETFs), unit investment trusts (UITs) and closed-end funds (CEFs), with their respective strategies and investment policies remaining unchanged.