By Nick Paraskeva

NEW YORK, Aug. 6 (Thomson Reuters Accelus) - The near-collapse of equity market maker Knight Capital after sending erroneous trades to the New York Stock Exchange last week is the latest in a string of errors causing heavy losses and disrupting markets. While smaller in dollar terms than losses from JPMorgan’s ‘London whale’ or UBS’ rogue trader, it is causing regulators to review firms’ compliance and controls over operational risks, and rules for restructuring of equity markets.

“The apparent trading error by Knight Capital Group reflects the type of event that can raise concerns for investors about our nation’s equity markets,” SEC chairman Mary Schapiro said on Friday. “I have asked SEC staff to accelerate ongoing efforts to propose a rule to require exchanges and other market centers to have specific programs in place to ensure the capacity and integrity of their systems”. (more…)