NYSE chief executive Duncan Niederauer, left, and Northern Ireland First Minister Peter Robinson speak to the media during a major jobs announcement at Stormont Castle, Belfast, Northern Ireland, Monday, Oct. 19, 2009. Niederauer unveiled plans Monday to open a new software and product-development center center in Belfast following years of lobbying by local authorities in Northern Ireland. The planned technology development center for NYSE Euronext Inc. , which operates several European stock exchanges and provides trading platforms for European brokers, will be its third in Europe alongside existing operations in London and Paris.