NOREX

In 1997, the Copenhagen Stock Exchange and the Stockholm Stock Exchange initiated formalized cooperation through NOREX, with the purpose of establishing a joint Nordic securities market. At the beginning of 1998, the two exchanges established a joint company, Nordic Exchanges A/S, whose primary task was to market NOREX worldwide.

The program was absorbed by OMX when it merged with the Stockholm Stock Exchange in 1998[1] and purchased the Copenhagen Stock Exchange in 2005.[1] This created a single Nordic exchange to which were added a number of other exchanges over the years and would eventually be part of NASDAQ OMX Group by 2008.