- The Nikkei is Japan’s leading stock index comprised of the country’s top 225 blue-chip stocks.
- The Nikkei is a price-weighted index, which means the index is an average of the share prices of all the companies listed.
- Some of the best-known companies listed in the Nikkei are Sony Corporation, Canon Inc, Nissan Motor Company, and Honda Motor Company.
Nikkei 225, or the Nikkei Stock Average (日経平均株価, Nikkei heikin kabuka), more commonly called the Nikkei or the Nikkei index, is a stock market index for the Tokyo Stock Exchange (TSE). It has been calculated daily by the Nihon Keizai Shimbun (The Nikkei) newspaper since 1950. It is a price-weighted index, operating in the Japanese Yen (JP¥), and its components are reviewed once a year. The Nikkei measures the performance of 225 large, publicly owned companies in Japan from a wide array of industry sectors.
Formerly called the Nikkei Dow Jones Stock Average (from 1975 to 1985), it is now named after the Nihon Keizai Shimbun or Japan Economic Newspaper, commonly known as Nikkei, which sponsors the calculation of the index. The index has been calculated since September 1950, retroactive to May 1949. Among the best-known companies included in the Nikkei index are Canon Incorporated, Sony Corporation, and Toyota Motor Corporation. It is the oldest stock index in Asia.