The Copenhagen Stock Exchange, officially called Nasdaq Copenhagen, is the main stock exchange of Danmark. It is one of eight stock exchanges that belong to Nasdaq Nordic, which is a subsidiary of Nasdaq that operates stock exchanges in several Nordic and Baltic countries and provides access to 80% of the Nordic and Baltic securities market. Trading is supported by a trading platform called INET Nordic. The Copenhagen Stock Exchange is headquartered in Copenhagen, Denmark`s capital, most populous city and economic center. It lists 156 companies with a market cap of DKK 2,900 billion. The exchange also houses bonds and derivatives.

Among the listings are well-known and actively traded companies such as Danske Bank, the Carlsberg Group, Maersk, Novo Nordisk and the TDC Group. The exchange manages the OMX Copenhagen 25 Index, a market value weighted, free float adjusted and capped index that tracks the performance of the 25 largest and most traded stocks. It is widely seen as the benchmark index for the Danish stock market. The constituents are screened for eligibility and reviewed semi-annually. The exchange also operates an all share index, indices for companies of different capitalization sizes and several sector and industry indices.