VanEck Vectors Environmental Services ETF (EVX US) – Portfolio Construction MethodologyThe underlying NYSE Arca Environmental Services Index offers rules-based exposure to U.S.-listed companies whose primary business is environmental services, including solid-waste collection, transfer and disposal, recycling, soil remediation, wastewater management and related consulting. Eligible common stocks and ADRs must trade on NYSE, NYSE American or Nasdaq, have market cap above 100 million USD and three-month avera ...