The UK's Office of Fair Trading has decided not to take any further action in the market for derivatives clearing, after inviting views earlier this year.
The OFT called for submissions on the issue in May after it concluded that ICE Clear Europe's regulatory provisions did not have a significantly adverse effect on competition.
In reaching its decision, the OFT concluded that, whilst some potential concerns about the competition effects of vertical integration between derivatives exchanges and clearing the transactions on them were raised, no specific action is required at present.
The watchdog says ongoing regulatory initiatives in the US and EU, and rapidly-changing technology and market developments indicate that further action at this time would be inappropriate.
However, it says it will "continue to monitor market developments closely".