Goldman Sachs, under fire for alleged conflict of interest over its roles in the $4.7bn (€3.6bn) New York Stock Exchange's agreed reverse takeover of Archipelago, is set to gain at least $100m from the deal.

According to a filing with the US Securities and Exchange Commission, Archipelago will pay Goldman $3.5m for advising on the transaction; the bank also owns 21 NYSE seats valued at $2.5m; it also owns 16% of Archipelago, a stake whose value has climbed $77 million since the merger announcement; and it will have a 5.7% stake in the combined group.