Scammers , tape painters, bots, make your money while you can 'Limit Up/Down' System May Replace Circuit Breakers-Sources Last update: 9/23/2010 12:46:59 PM By Kristina Peterson and Jacob Bunge Of DOW JONES NEWSWIRES Stock exchange operators and regulators are moving closer toward replacing new circuit breakers for individual stocks with curbs that would limit trading outside of a set range, according to people familiar with the matter. The U.S. Securities and Exchange Commission has stepped up talks with exchange operators and market participants over establishing in equities markets the "limit-up/limit-down" system already in place for futures trading in the equity market.