The UBS ETRACS 1x Monthly Short Alerian MLP Infrastructure Total Return Index ETN (MLPS) tracks the Alerian MLP Infrastructure Total Return Index (AMZIX). AMZIX includes the same constituents as the Alerian MLP Infrastructure Index (AMZI). Additionally, it includes the distributions from its constituents for return calculations—called a “total return.”
Its top five constituents include Enterprise Product Partners LP (EPD)—which has a weightage of 10.34%, Plains All American Pipeline (PAA)—7.47%, MarkWest Energy Partners (MWE)—7.47%, Magellan Midstream Partners (MMP)—7.27%, and Energy Transfer Partners (ETP)—7.23% (figures as per Alerian).
View more information: https://marketrealist.com/2014/12/introducing-ubs-etracs-alerian-mlp-infrastructure-etn-amzix/