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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 Constituents29
    Market Capitalization$196 billion
    Adjusted Market Capitalization$103 billion
    RebalancingsQuarterly

    Index Yield

    Top 10 Constituents

    ConstituentsSectorTickerPriceYieldMarket Cap (M)Index Weight
    MPLX LPPipeline Transportation | PetroleumMPLX$28.239.7%$29,88910.1%
    Enterprise Products Partners LPPipeline Transportation | Natural GasEPD$21.748.2%$47,52110.0%
    Magellan Midstream Partners LPPipeline Transportation | PetroleumMMP$46.308.9%$10,4209.9%
    Energy Transfer LPPipeline Transportation | Natural GasET$9.2513.2%$24,9379.8%
    Plains All American Pipeline LPPipeline Transportation | PetroleumPAA$9.527.6%$7,6089.3%
    Phillips 66 Partners LPPipeline Transportation | PetroleumPSXP$34.8210.1%$8,4325.4%
    DCP Midstream LPGathering & ProcessingDCP$26.106.0%$5,4375.2%
    EnLink Midstream LLCGathering & ProcessingENLC$6.545.7%$3,6514.8%
    Crestwood Equity Partners LPGathering & ProcessingCEQP$27.069.2%$1,9803.5%
    Cheniere Energy Partners LPLiquefactionCQP$39.786.5%$19,2543.5%

    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: 09/17/21

    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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