Knight Capital CEO Says It Was A Simple Breakdown

Knight Capital Tom Joyce says it was a simple breakdown with its technology. Knight is currently doing an investigation into what happened. Joyce said he'll support additional rules once he has the data on what happened. Joyce said the SEC did its job properly. These comments came from an interview with CNBC's Bob Pisani. Ameritrade

, Scottrade are routing back to Knight, but no updates on the other brokerages from Joyce.