Stock exchange operator NYSE Euronext Tuesday reported it swung to a second-quarter net profit of $184m (€140m) compared with a loss of $182m in the same period a year earlier, driven by robust trading volumes, strong revenue generation and a net pre-tax gain of $54m from asset disposals.

The second-quarter net profit figure was after $32m of pre-tax merger and exit costs, compared with $442m a year before.