LONDON -Britain's competition regulator has fined Citi, HSBC, Morgan Stanley and Royal Bank of Canada (RBC) a combined 104.5 million pounds ($132.4 million)Â for exchanging sensitive information about UK government bonds. The Competition and Markets Authority (CMA) said on Friday that it had reached settlements with the banks over the sharing of information by their traders in the aftermath of the global financial crisis, between 2009 and 2013. The banks' traders shared competitively sensitive information that was relevant to the pricing of UK bonds, known as gilts, in one-to-one exchanges in Bloomberg chatrooms, the CMA said.