The investment seeks daily investment results before fees and expenses of 200% of the inverse of the daily performance of the NYSE Arca Gold Miners Index. The fund invests in swap agreements, futures contracts, short positions or other financial instruments that, in combination, provide inverse or short leveraged exposure to the index equal to at least 80% of the fund's net assets. The index is a modified market capitalization weighted index comprised of publicly traded companies that operate globally in both developed and emerging markets, and are involved primarily in mining for gold and, to a lesser extent, in mining for silver. It is non-diversified.