Deutsche Boerse AG's (DB1Gn.DE) bid to acquire NYSE Euronext (NYX.N) faces a hard regulatory battle after the EU's antitrust chief highlighted the anticompetitive dangers of its one-stop shop business model. Deutsche Boerse unveiled its $10.2 billion takeover of NYSE Euronext last month to form the world's largest exchange operator, part of a wave of tie-ups in the increasingly competitive and global exchange world. The merged group would dominate exchange-based European derivatives trading, with operations spanning the United States, Germany, France, Britain, the Netherlands, Portugal and Belgium. [ID:nLDE72F2M2]
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