London Stock Exchange

Doubts over merger of London Stock Exchange, Deutsche Boerse

The London Stock Exchange's merger with Deutsche Boerse has been thrown into doubt after the LSE decided it couldn't comply with last-minute conditions imposed by European regulators.

The deal, announced almost a year ago, would have created a company worth $30 billion in which the German financial exchange would own a 54.4 percent stake.

In a statement late Sunday, the London exchange said the European Commission, the executive branch of the European Union, was demanding that it sell its majority stake in MTS, an electronic trading platform for European wholesale government bonds, to resolve competition concerns.

The LSE said this would be "detrimental"...