Here's what Apple could do with its huge cash pile (AAPL)

Apple has the financial strength to ramp up its buyback program, according to RBC Capital Markets analyst Amit Daryanani.
Apple could buy back $25 billion of its own stock over the next five years.
Apple reports earnings after Tuesday's closing bell.
Watch Apple trade in real time here.Apple reports earnings after Tuesday's closing bell, and investors are eager to see by how much the tech giant's massive cash pile has grown.  
At $261 billion, Apple has the largest cash pile of any US