Claymore Securities, Inc., an innovator of investment product solutions and a wholly-owned subsidiary of Guggenheim Partners, LLC, today announced the launch of the Wilshire Micro-Cap ETF (NYSE Arca: WMCR), based on the Wilshire US Micro-Cap Index SM—the marketplace’s Pure and Complete SM micro-cap index. The introduction of WMCR marks the fourth fund in Claymore’s suite of Wilshire-focused ETFs, which also includes the Wilshire 5000 Total Market ETF (NYSE Arca: WFVK), Wilshire 4500 Completion ETF (NYSE Arca: WXSP), and Wilshire US REIT ETF (NYSE Arca: WREI). Claymore is the exclusive provider of ETFs utilizing Wilshire indexes. “Through our exclusive partnership with Wilshire and our ETF suite, investors now have solutions for both the core and satellite portions of their portfolios that combine the most meaningful features and benefits of ETFs,” said Steven A. Baffico, senior managing director and Head of U.S. Retail Distribution for Claymore Securities, Inc. “Claymore’s new Wilshire Micro-Cap ETF is tied to an index that offers an unbiased and more complete picture of the micro-cap market.” David Hall, senior managing director, Wilshire Associates Incorporated, the firm that created the index that WMCR is designed to track, noted, “The Wilshire Micro-Cap ETF provides investors an efficient way to gain exposure to a very difficult section of the market to replicate. The introduction of WMCR is the first style or size ETF based on the Wilshire indexes and marks another milestone in our commitment to working with Claymore to deliver a comprehensive suite of world-class Wilshire ETFs.” Prior to today, the Wilshire Micro-Cap ETF’s name was Claymore/Sabrient Stealth ETF (NYSE Arca: STH) and it sought to replicate an index called the Sabrient Stealth Index. WMCR now seeks investment results that correspond generally to the performance, before fees and expenses, of an equity index called the Wilshire US Micro-Cap Index (“Wilshire Micro-Cap”). The Wilshire Micro-Cap is a rules-based index comprised of, as of July 31, 2010, approximately 1,597 securities of micro-capitalization companies, as defined by Wilshire Associates Incorporated. It is a float-adjusted, market capitalization-weighted index of the issues ranked below 2,500 by market capitalization of the Wilshire 5000 Total Market Index SM. For more information on WMCR please visit www.claymore.com/wmcr. About Claymore Securities Claymore Securities, Inc. offers strategic investment solutions for financial advisors and their valued clients. As an innovator in exchange-traded funds (ETFs), unit investment trusts (UITs) and closed-end funds (CEFs), Claymore often leads its peers with creative investment strategy solutions. In total, Claymore entities provide supervision, management, or servicing on approximately $15.3 billion in assets as of June 30, 2010. Claymore Securities, Inc. is a wholly-owned subsidiary of Guggenheim Partners, LLC, a global, diversified financial services firm with more than $100 billion in assets under supervision. Guggenheim, through its affiliates, provides investment management, investment advisory, insurance, investment banking, and capital markets services. The firm is headquartered in Chicago and New York with a global network of offices throughout the United States, Europe, and Asia. Claymore Advisors, LLC, an affiliate of Claymore Securities, Inc., serves as the Funds’ investment adviser.