US authorities block Chicago exchange sale

NEW YORK: US regulators Thursday - group of investors including the

Two years after the announcement of the deal, US Securities and cited a lack of clarity in the details of the deal, including an inability to identify who exactly would control the exchange.

US congressmen last summer expressed concern at the prospect among the largest shareholders of a US stock market -- while President Donald Trump also raised the issue during his campaign.

The decision comes as commercial relations between Washington and Beijing remain tense.

US President Donald Trump, denouncing unfair trade, once again threatened trade sanctions day, Beijing warned against “any sign of unilateralism or protection- ism” from Washington.

acquired 29 percent of the have bought 11 percent of the company. The rest would have been divided among various American groups and individuals.

not enough information to prove those parties were not somehow

It also argued it could not be certain that it would be able to accounts if necessary.

Faced with suspicion from the groups initially looking to invest pulled out last autumn.

Stock Exchange is one of the oldest in the United States, handling less than 1 percent of daily trading according to Bloomberg.