NYSE files with the SEC to end "trading collars"-WSJ - The New York Stock Exchange, owned by NYSE Euronext (NYX), is said to have filed with the SEC to remove "trading collars." Trading collars were first introduced after the 1987 crash and are designed to slow down program trading in the event the market rises or galls 190 points
I'd be more concerned about the NYSE scrapping hybrid (hinted at in the NY Post article in the thread below this one...) - mnx