Fund Description: Guggenheim Large Cap Optimized Diversification ETF is an exchange-traded index fund or Index ETF that is a separate investment portfolio of the Claymore Exchange-Traded Fund Trust, an investment management company. INVESTMENT OBJECTIVE: The Guggenheim Large Cap Optimized Diversification ETF seeks investment results that correspond generally to the performance, before the Fund’s fees and expenses, of the Wilshire Large Cap Optimized Diversification Index. INDEX DESCRIPTION: The Wilshire Large Cap Optimized Diversification Index seeks to provide the optimal level of diversification and higher returns from specific stock selections available in the U.S. large-cap equity market than would be provided by a standard market-capitalization weighted exposure. Index constituents must be constituents of the Wilshire US Large-Cap Index (the Wilshire Large-Cap), which is a subset of the Wilshire 5000 Total Market Index designed to represent the large-cap market. Wilshire Associates Inc. the Index Provider, using its proprietary methodology, selects a subset of stocks from the constituents of the Wilshire Large-Cap and weights the stocks based on their correlations, which is the relation of changes in a company's share price to changes in the share prices of other companies in the investable universe. This weighting by correlation is designed to result in the returns from each specific stock selection contributing a similar level of unique risk to the Index. The Index is also subject to sector and stock specific constraints. The Index is reconstituted quarterly and are only eligible for inclusion in the Index if they have been a constituent of the Wilshire Large-Cap for more than six months prior to a quarterly rebalancing date. FUND STRATEGY: The Fund, using a passive or indexing investment approach, seeks to replicate the performance of the Index. The Fund will invest at least 80% of its total assets in securities that comprise the Index. The Fund generally will invest in all of the securities comprising the Index in proportion to their weightings in the Index. However, under various circumstances, it may not be possible or practicable to purchase all of the securities in the Index in those weightings. In those circumstances, the Fund may purchase a sample of the securities in the Index in proportions to replicate generally the performance of the Index as a whole. There may also be instances, such as: (i) regulatory requirements which may affect the Fund’s ability to hold a security included in the Index or (ii) liquidity concerns that affect may affect the Fund’s ability to purchase or sell a security included in the Index, in which the Investment Adviser may choose to overweight another security in the Index, or purchase (or sell) securities not in the Index which the Investment Adviser believes are appropriate to substitute for one or more Index components, in seeking to accurately track the Index. In addition, from time to time securities are added to or removed from the Index. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to the extent the Index is so concentrated. The consumer staples and consumer discretionary sectors each represented a substantial portion of the Index which may change over time. FUND MANAGEMENT: Guggenheim Funds Investment Advisors, LLC, serves as the investment adviser to the Fund.