UBS ETRACS Alerian MLP Infrastructure Index ETN Series B (ETRACS Alerian MLP Infrastructu) ETF

The ETRACS Alerian MLP Infrastructure Index ETN Series B is senior unsecured debt securities issued by UBS. The index constituents earn the majority of their cash flow from gathering and processing, liquefaction, midstream services, pipeline transportation, rail terminaling and storage of energy commodities.