Reuters/ Neil HallAtlanta-based Intercontinental Exchange is now considering making a counter bid for the London Stock Exchange, Bloomberg News reports.
This comes just a week after the British stock market operator confirmed it was in merger talks with Germany's Deutsche Boerse.
ICE, which acquired NYSE Euronext in 2013, has engaged Morgan Stanley as an adviser, the report said.
Robey Warshaw is the lead adviser for LSE, while Perella Weinberg is the lead financial adviser to Deutsche Boerse.
Any potential tie-up would fundamentally alter financial market trading.
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