Investors can for the first time bet on the value of bitcoins through an established stock exchange after Nasdaq launched an index based on the cybercurrency in Stockholm, Sweden.
Etsy priced its shares at $16 ahead of its Thursday Wall Street debut for the online marketplace known for handicrafts and strong social values.
An unorthodox stock split designed to ensure Google CEO Larry Page and fellow co-founder Sergey Brin retain control of the Internet's most profitable company could cost Google more than half a billion dollars.
Twitter got a reality check Wednesday as the high-flying messaging company reported modest user growth during a quarter in which it lost $511 million.
The Nokia handsets business that Microsoft is due to take over saw sales continue to slide in the fourth quarter as its Lumia smartphones failed to draw business away from larger competitors like Apple and Samsung.
Zynga said Thursday it wants to perform better, as the social games firm reported losses widened and revenues sank in the past quarter, sending its share price tumbling.
Apple's much-anticipated update to its line-up of iPhones may leave the impression that the technology pioneer's focus has shifted to making more affordable products than engineering innovative breakthroughs.
The world's biggest iron ore producer, Vale, has announced its intention to expand production despite a falling price. This follows similar announcements by Rio Tinto and BHP.
A battle has started for control of Portugal Telecom, with an Angolan takeover bid countering a French company's offer.