SIFMA and NetCoalition provide comments and submit a petition for disapproval to the Securities and Exchange Commission (SEC) on a NYSE Arca proposed rule change offering a market data product to vendors and subscribers that combines three existing market data feeds, as well as, additional market data from the the NYSE Arca Exchange (the Exchange) into one integrated product, the NYSE Arca Integrated Data Feed, File No. SR-NYSEArca-2011-78, Exchange Act Release No. 65669.  The NYSE Arca Integrated Data Feed would combine NYSE Arca BBO, NYSE Trades, and NYSE ArcaBook.  The groups believe the Exchange did not provide any substantial evidence to support its assertion that the proposed rule change could properly become effective on the basis that it does not: (i) significantly affect the protection of investors or the public interest; or (ii) impose any significant burden on competition.