As previously announced in the August 15, 2008 NYSE Trader Update, NYSE Euronext is moving the timing of the American Stock Exchange equities integration to early December from mid-September. The extension responds to member firms' requests for additional time to make and test necessary programming changes, as well as for trading and post-trade system modifications that will make the transition easier for the firms.
Amex-listed structured products and ETFs that will be transferring their listing to NYSE Arca will move in a phased approach beginning shortly after the closing of the transaction and continuing through the end of November. Upon completion, all Amex equities will then be migrated over to the NYSE trading platform. Additionally, changes are being implemented to pass the executing exchange back to the firms in CCG FIX Tags 207 (SecurityExchange) and 30 (LastMkt) as well as on new fields/values of NYSE Post Trade and Intra-day Contract outputs.
NYSE/Amex Integration – Trading Systems Update (http://www.nyse.com/pdfs/AMEXTradingSystemNotice090908.pdf)
NYSE/Amex Integration – Post Trade Update (http://www.nyse.com/pdfs/PT148-2.pdf)