CME GroupThe CME Group and Javelin Capital Markets cleared and executed USD4.1 billion in interest rate swaps on Tuesday for a group of dealers and end users in a few seconds, a market first that could undercut dealer opposition to anonymous real-time clearing in the U.S. The swaps were executed with maturities between two-10 years, with an average notional of USD195 million and an average turnaround time of 1.932 seconds. Ninety percent of the swaps were accepted in under two seconds, with the fastest coming in at ....