Coordinates: 59°54′31.31″N 10°44′52.06″E / 59.9086972°N 10.7477944°E / 59.9086972; 10.7477944

The Oslo Stock Exchange (Norwegian: Oslo Børs) (OSE: OSLO) serves as the main market for trading in the shares of Norwegian companies. It opens at 9:00am and closes 5:30pm local time (CET). In additional to a wide range of domestic companies, the OSE attracts a lot of international companies within petroleum, shipping and other related areas.

The exchange has pre-market sessions from 08:15am to 09:00am, normal trading sessions from 09:00am to 05:20pm and post-market sessions from 05:20pm to 05:30pm on all days of the week except Saturdays, Sundays and holidays declared by the Exchange in advance.

The Oslo Stock Exchange started life as Christiania Børs in 1819. In the beginning, there was no organized listing or stock exchange; the Børs served as a meeting place for investors auctioning ships, shares in ships, commodities, and foreign currencies. Stocks and bonds only started trading on the exchange in 1881.

Oslo (English pronunciation: /ˈɒzloʊ/, OZ-loh,Norwegian pronunciation: [²ʊʃlʊ] ( listen) or [²ʊslʊ]) is the capital of and most populous city in Norway. Founded around 1048 by King Harald III, the city was elevated to a bishopric in 1070 and a capital under Haakon V around 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 and with Sweden from 1814 to 1905 reduced its influence. After being destroyed by a fire in 1624, the city was moved closer to Akershus Castle during the reign of King Christian IV and renamed Christiania in his honour. It was established as a municipality (formannskapsdistrikt) on 1 January 1838. Following a spelling reform, it was known as Kristiania from 1877 to 1925, when its original Norwegian name was restored.

Oslo is the economic and governmental centre of Norway. The city is also a hub of Norwegian trade, banking, industry and shipping. It is an important centre for maritime industries and maritime trade in Europe. The city is home to many companies within the maritime sector, some of which are amongst the world's largest shipping companies, shipbrokers and maritime insurance brokers. Oslo is a pilot city of the Council of Europe and the European Commission intercultural cities programme.