TD Ameritrade Holding Corp. (AMTD), a provider of securities brokerage services and technology-based financial services to retail investors and traders, said its daily client trades fell 6% last month from a year earlier and declined 3% from March. TD Ameritrade averaged 402,000 trades last month. According to the Argentine presidency’s press office, President Cristina...

Sony Corp. (NYSE: SNE) apologized for the breach of its PlayStation Network and Qriocity services, and said it aims to resume the online gaming center by the end of the month after upgrading security. Chiba Bank Ltd. (8331 JT), a regional lender, advanced 6.1 percent to 506 yen. The company said it will spend as much as 6 billion yen to buy back up to 1.3 percent of its...

The world’s largest electronics retailer by sales Best Buy Co. (BBY) plan to grow its online and mobile businesses while scaling back its “big box” retail space as part of a broader strategy to combat declining sales and rising competition. China’s economy grew at a slightly slower rate in the first quarter, as food prices continued to surge and...