Market regulation · 18/05/2011

NASDAQ OMX PHLX LLC Approves Rule Change for PHLX Oil Service Sector

NASDAQ OMX PHLX LLC has approved a proposed rule change to expand the number of components in the PHLX Oil Service Sector, known as OSXSM, and shift the weighting methodology from price-weighted to capitalization-weighted.

Source: Federal Register — SECOpen original release →

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