NYSE Euronext (NYX) and BATS Global Markets file proposals with the SEC to extend use and...

|About: NYSE Euronext (NYX)|By:, SA News Editor

NYSE Euronext (NYX) and BATS Global Markets file proposals with the SEC to extend use and research on circuit breakers for four additional months. The plan sets certain criteria for allowing exchanges to automatically halt trading in a stock if activity reaches abnormal and potentially threatening levels, as it did in May’s flash crash.