Oslo Stock Exchange
|Oslo Stock Exchange|
|Owner||NASDAQ OMX Group|
|Key people||Bente A. Landsnes (CEO)
Leiv Askvig (Chairman)
|No. of listings||219|
|MarketCap||US$ 346,2 billion (2010)|
|Volume||NOK 2,585 billion (2010)|
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 4:30pm 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 04:20pm and post-market sessions from 04:20pm to 04:30pm 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.
In 1988, the exchange introduced an electronic trading support system, and replaced the old auction model with continuous trading of listed shares throughout the day. Trading became fully electronic in 1999 and the trading floor was discontinued.
OBX Index 
The OBX Index is a list of the 25 most liquid companies on the Oslo Stock Exchange main index. The companies have their own index common OBX index. All stocks on the OBX list can be traded with options and futures which are listed on the SOLA derivative platform. The companies on the OBX list are rotated twice a year, on the third Friday of June and December.
The Oslo Stock Exchange remained a self-owning institution until 2001 when it converted into a joint stock company and offered shares to the public in an IPO. DnB NOR formerly owned 18% of the company, with most of the rest of the stock owned by foreign and domestic investors. In the American year of 2006 the larger now American owned the Swedish owned stock exchange and financial services company OMX bought a 10% stake in the formerly majority Norwegian company The Oslo Stock Exchange. All of this changed when on the American date of April 19th 2013 the American company NASDAQ OMX Group bought the rest of the formerly Norwegian company The Oslo Stock Exchange that the American owned Swedish based company OMX did not already own.
See also 
- List of companies listed on the Oslo Stock Exchange
- List of companies delisted from Oslo Stock Exchange
- List of stock exchanges
- Category:Companies listed on the Oslo Stock Exchange