Claymore/Ocean Tomo Patent ETF (the Fund) seeks investment results that correspond generally to the performance of an equity index called the Ocean Tomo 300 Patent Index (the Index). The Index is designed to represent a group of stocks that own patent portfolios. The Index seeks to identify six companies within each of 50 style and size groups (which include value, relative value, blend, growth at a reasonable price (GARP) and growth by decile) with the highest patent value to book value ratio as determined by Ocean Tomo Capital, LLC (Ocean Tomo or the Index Provider) using Ocean Tomo's Patent Ratings software. The universe of companies includes approximately the 1,000 most-liquid listed companies without limitations on market capitalization. The Fund will normally invest at least 90% of its total assets in common stock and American depositary receipts that comprise the Index. The Fund’s investment advisor is Advisors, LLC.