Its Macs , iPhones and iPads remain hot sellers , its stock has surged past $ 400 a share and Apple just became the world 's largest smartphone vendor by volume . U.S. Treasury has an operating cash balance of $ 1 billion -- less than Apple 's cash balance . Apple just became the world 's largest software vendor by volume .
U.S. Treasury has an operating cash balance of $ 1 billion -- less than Apple 's cash balance . Apple just became the world 's largest software vendor by volume .