<p>NEW YORK (Reuters) - Knight Capital Group Inc has hired International Business Machines Corp to look into the August 1 trading glitch that cost the trading firm $440 million and forced it to accept a $400 million investment from a group of financial companies to keep it afloat, the company said on Tuesday.</p><p>IBM began a third-party review of Knight's product development lifecycle processes on August 27, the company's chief executive, Tom Joyce, said at the Barclays Global Financial Services Conference in New York.</p><p>Joyce said IBM would report its findings to Knight's board of directors in the autumn. Knight's risk management committee is also looking at taking a number of steps to prevent another such technical mishap, he added.</p><p>Knight is one of the largest executors of stock trades in the United States. Joyce said volumes at Knight had largely returned to levels seen prior to the trading glitch.</p><p><a href="http://www.reuters.com/article/2012/09/11/us-knight-ceo-idUSBRE88A0PB20120911">Keep reading...</a></p>