Goldman Sachs scored a hat trick today in the $3.5bn (€2.67bn) reverse takeover by the privately-owned New York Stock Exchange of the quoted electronic trading firm Archipelago. The US bank advised both sides on the deal and will benefit from its 15% Archipelago stake.

Greenhill, the US advisory boutique, provided a fairness opinion to Archipelago. Lazard provided a fairness opinion to the NYSE.