OM Group
The OM Group is a Swedish company in the financial sector. Started by Olof Stenhammar in the 1980s to introduce trading in derivatives instruments in Sweden by use of standardized options. It acquired the Stockholm Stock Exchange in 1998 and unsuccessfully atempted acquisition of the London Stock Exchange in 2001. The company is also a world leader in financial instruments trading systems.In 2003 it acquired the Helsinki Stock Exchange.
See also: List of Swedish companies
