Depends on what that means. If you base it on their high of ~700, yeah, their current price ~500 looks pretty bad. However, they started out 2012 ~400. 20% gain in a year is pretty rock solid.
Market cap today is is still $472,000,000,000. Cash reserves around $124,000,000,000. Earnings of $8,200,000,000 on $36,000,000,000 in revenue last quarter alone. I think they're doing fine! :)
Apple has an incredibly long and prominent history of having its stock manipulated by traders around the timing of new product events and quarterly earnings statements.
When "today" is near one of those events, you probably don't want to anchor your evaluations of the company to a short-window snapshot of stock performance.