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Alerian MLP Index

The Alerian MLP Index is the leading gauge of energy infrastructure Master Limited Partnerships (MLPs). The capped, float-adjusted, capitalization-weighted index, whose constituents earn the majority of their cash flow from midstream activities involving energy commodities, is disseminated real-time on a price-return basis (AMZ) and on a total-return basis (AMZX).

Index Characteristics

Index Symbol (Price Return)AMZ
Index Symbol (Total Return)AMZX
Number of Constituents22
Market Capitalization$203 billion
Adjusted Market Capitalization$111 billion

Index Yield

Top 10 Constituents

ConstituentsSectorTickerPriceYieldMarket Cap (M)Index Weight
Magellan Midstream Partners LPPipeline Transportation | PetroleumMMP$49.398.4%$11,11610.2%
Plains All American Pipeline LPPipeline Transportation | PetroleumPAA$10.436.9%$8,33610.1%
Energy Transfer LPPipeline Transportation | Natural GasET$10.726.5%$28,89910.0%
MPLX LPPipeline Transportation | PetroleumMPLX$30.319.3%$32,0919.9%
Enterprise Products Partners LPPipeline Transportation | Natural GasEPD$25.467.3%$55,6539.8%
Western Midstream Partners LPGathering & ProcessingWES$24.635.3%$10,9369.5%
DCP Midstream LPGathering & ProcessingDCP$33.224.7%$6,9217.4%
EnLink Midstream LLCGathering & ProcessingENLC$9.484.8%$5,2936.1%
Cheniere Energy Partners LPLiquefactionCQP$46.796.0%$22,6475.1%
Shell Midstream Partners LPPipeline Transportation | PetroleumSHLX$13.828.7%$5,4354.4%

Sector Weightings

The accuracy and/or completeness of any Alerian index, any data included therein, or any data from which it is based is not guaranteed by Alerian, and it shall have no liability for any errors, omissions, or interruptions therein. Alerian makes no warranties, express or implied, as to results to be obtained from use of information provided by Alerian and used in this service, and Alerian expressly disclaims all warranties of suitability with respect thereto. The Alerian MLP Index is the exclusive property of Alerian, which has contracted with Standard & Poors ("S&P") to maintain and calculate the Index. S&P shall have no liability for any errors or omissions in calculating the Index.

Last Updated: 09/23/22

Market Data

Alerian’s indexes are widely used by financial firms, industry stakeholders and professionals to support a variety of business functions. Alerian offers a range of end-of-day and historical index data subscriptions.

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