UltraShort DJ-UBS Natural Gas
ProShares UltraShort DJ-UBS Natural Gas seeks daily investment results, before fees and expenses, that correspond to twice (2x) the inverse (opposite) of the daily performance of the Dow Jones-UBS Natural Gas Subindex.SM
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Index/Benchmark Summary
The Dow Jones-UBS Natural Gas Subindex (a subindex of Dow Jones-UBS Commodity Index) is intended to reflect the natural gas segment of the commodities market. The index consists of futures contracts on natural gas. Visit Dow Jones Indexes for more information.
Unlike equities, which entitle the holder to a continuing stake in a corporation, commodity futures contracts specify a delivery date for an underlying physical commodity. The Dow Jones-UBS Commodity Index measures the performance of commodity futures contracts, and, as the date for a futures contract comes due, the Dow Jones-UBS Natural Gas Subindex replaces such contract with similar contracts with later expirations. The Dow Jones-UBS Commodity Index thus is a "rolling" index.
The Dow Jones-UBS Commodity Index is valued using the settlement prices for the underlying futures contracts. The Dow Jones-UBS Natural Gas Subindex rolls its contracts over the course of 5 consecutive business days, starting on the 6th business day of the month. Each day, 20% of each futures position that is included in the month’s roll is rolled. Not all contracts are rolled every month. Please download A Primer on Index Calculation and Performance from djindexes.com for a list of futures and their roll months.