The investment seeks investment results, before fees and expenses, that track the performance of the ProShares Online Retail Index (the index). Under normal circumstances, the fund will invest at least 80% of its total assets in component securities of the index. The index is designed to measure the performance of publicly traded companies that principally sell online or through other non-store sales channels, such as through mobile or app purchases, rather than through brick and mortar store locations. The fund is non-diversified.