Rajat Gupta asked a federal appeals court to set aside his insider-trading conviction because he said wiretaps were improperly allowed as evidence.

The market for bonds backed by a single loan on commercial real estate is booming for the first time since the financial crisis.

British retailer Marks & Spencer reported another set of lackluster earnings, putting Chief Executive Marc Bolland under the spotlight after three years in charge.

Microsoft unveiled a reinvented Xbox game console that demonstrated the software giant's most aggressive play yet for control of consumers' living rooms.

Best Buy posted a quarterly loss as it ramped up cost-cutting and revenue continued to slide. Online sales improved, however.

LPL Financial agreed to pay at least $9 million to end allegations by regulators that the brokerage firm was plagued by "systemic email failures" but did too little to fix them.

New U.S. Energy Secretary Ernest Moniz raised the possibility of delaying further approvals for companies to export natural gas, saying he wants to review whether government studies of the issue are adequate.

Big phone companies have started to sell the data they gather about subscribers' locations, travels and Web-browsing habits, providing a powerful tool for marketers but raising new privacy concerns.

Renault and Nissan are expanding the capacity at their joint-venture factory in India by a third as part of their strategy to utilize the country as a global manufacturing hub and to tap potential growth in local demand.

South Africa's currency stumbled to a four-year low and the country's bonds sold off, signs that escalating labor unrest is starting to outweigh the lure of high yields for many investors.