The Invesco Global Agriculture ETF is based on the NASDAQ OMX Global Agriculture Index. The Fund will normally invest at least 90% of its total assets in securities that comprise the Index and American depositary receipts and global depositary receipts based on the securities in the Index. The Index is designed to measure the overall performance of the most liquid, globally traded companies involved in agriculture and farming-related activities. The Index is rebalanced quarterly using a modified, market-cap-weighted methodology. The Index is computed using the net return, which withholds applicable taxes for non-resident investors. The Fund and the Index are rebalanced quarterly and reconstituted annually with June's rebalance.