Definition:
OLO, the PowerShares DB Crude Oil Long ETN tracks the price of the Deutsche Bank Liquid Commodity index - Optimum Yield Oil Excess Return.
The oil etn consists of futures contracts to emulate the performance of light sweet crude oil (WTI).
If you'd like to see more related funds, here is a thorough list of oil ETFs and ETNs
Or if you are more interested in energy investments, here is a List of Energy ETFs.
