Toshiba rasar på börsen efter uppgifter om varning

Toshiba Corporation (株式会社東芝, Kabushiki-gaisha Tōshiba, English /təˈʃiːbə, tɒ-, toʊ-/) (commonly referred to as Toshiba, stylized as TOSHIBA) (tow-SHEE-buh) is a Japanese multinational conglomerate corporation headquartered in Tokyo, Japan. Its diversified products and services include information technology and communications equipment and systems, electronic components and materials, power systems, industrial and social infrastructure systems, consumer electronics, household appliances, medical equipment, office equipment, lighting and logistics. Toshiba was founded in 1938 as Tokyo Shibaura Electric K.K. through the merger of Shibaura Seisaku-sho (founded in 1875) and Tokyo Denki (founded in 1890). The company name was officially changed to Toshiba Corporation in 1978. Toshiba made a large number of corporate acquisitions during its history, including of Semp in 1977, of Westinghouse Electric LLC, a nuclear energy company in 2006, of Landis+Gyr in 2011, and of IBM's point-of-sale business in 2012. Toshiba is organised into four business groupings: the Digital Products Group, the Electronic Devices Group, the Home Appliances Group and the Social Infrastructure Group. It is listed on the Tokyo Stock Exchange, where it is a constituent of the Nikkei 225 and TOPIX indices, the Osaka Securities Exchange and the Nagoya Stock Exchange. Toshiba is the seventh largest semiconductor maker in the world by revenue.