Given the question: Information: - Nordea Bank AB , commonly referred to as Nordea , is a Nordic financial services group operating in Northern Europe . The bank is the result of the successive mergers and acquisitions of the Finnish , Danish , Norwegian and Swedish banks of Merita Bank , Unibank , Kreditkassen ( Christiania Bank ) and Nordbanken that took place between 1997 and 2000 . The Baltic countries and Poland are today also considered part of the home market . The largest share holder of Nordea is Sampo , a Finnish insurance company with around 20 % of the shares . Nordea is listed on the Copenhagen Stock Exchange , Helsinki Stock Exchange and Stockholm Stock Exchange . Nordea is headquartered from Stockholm and has more than 1,400 branches . The bank is present in 19 countries around the world , operating through full service branches , subsidiaries and representative offices . The international corporate banking division has branches in Germany ( Frankfurt ) , United Kingdom ( London ) , Singapore , China ( Shanghai ) and in the United States ( New York ) . Nordea International private banking has its headquarters in Luxembourg with branches in Switzerland ( Zurich ) and Singapore . Nordea also has representative offices in Brazil ( Sao Paulo ) and China ( Beijing ) . Nordea currently serves 11 million private and 700,000 active corporate customers . The group also operates an internet bank , which has more than 5.9 million online customers doing more than 260 million payments per year . - Nasdaq Nordic is the common name for the subsidiaries of Nasdaq, Inc. that provide financial services and operate marketplaces for securities in the Nordic and Baltic countries. - The Nasdaq Stock Market is an American stock exchange. It is the second-largest exchange in the world by market capitalization, behind only the New York Stock Exchange. The exchange platform is owned by Nasdaq, Inc., which also owns the Nasdaq Nordic (formerly known as OMX) and Nasdaq Baltic stock market network and several other US stock and options exchanges. - The Helsinki Stock Exchange is a stock exchange located in Helsinki, Finland. Since 3 September 2003, it has been part of Nasdaq Nordic (previously called "OMX"). After the OMX merger, it was referred to as "OMX Helsinki" (OMXH), then after NASDAQ's acquisition of OMX in February 2008, "NASDAQ OMX Helsinki", and currently Nasdaq Helsinki. - The Stockholm Stock Exchange, operating under the name Nasdaq Stockholm, is a stock exchange located in Frihamnen, Stockholm, Sweden. Founded in 1863, it has become the primary securities exchange of the Nordic countries. More than 300 companies have been listed for trading. - The Copenhagen Stock Exchange or CSE, since 2014 officially called Nasdaq Copenhagen, is an international marketplace for Danish securities, including shares, bonds, treasury bills and notes, and financial futures and options. After reading the paragraphs above, we are interested in knowing the entity with which 'nordea' exhibits the relationship of 'stock exchange'. Find the answer from the choices below. Choices: - copenhagen stock exchange - helsinki stock exchange - nasdaq - omx - stockholm stock exchange
The answer is:
omx