As of March 14, 2014 Claymore Exchange-Traded Fund Trust - Guggenheim Enhanced Core Bond ETF has gone out of business. Claymore Exchange-Traded Fund Trust - Guggenheim Enhanced Core Bond ETF is an exchange traded fund launched and managed by Guggenheim Funds Investment Advisors, LLC. The fund invests in fixed income markets of United States. It primarily invests in U.S. dollar-denominated investment grade debt securities, including U.S. Treasury securities and corporate bonds, rated Baa3 or higher by Moody’s or BBB- and above by S&P and Fitch. The fund invests in securities with portfolio duration similar to its benchmark. It employs active management style to manage its portfolio. The fund employs fundamental and quantitative analysis by focusing on factors such as collateral and counterparty risk, structural analysis, quantitative analysis and relative value/market value at risk analysis, historical market data, statistical models to evaluate specific transactions, macroeconomic outlook, geopolitical issues, and security’s credit quality to create its portfolio. It benchmarks the performance of its portfolio against the Barclays Capital U.S. Aggregate Bond Index. The fund employs proprietary research to create its portfolio. It was formerly known as the Claymore Exchange-Traded Fund Trust - Claymore U.S. Capital Markets Bond ETF. Claymore Exchange-Traded Fund Trust - Guggenheim Enhanced Core Bond ETF was formed on February 12, 2008 and is domiciled in the United States.