The TL;DR is that Apple often goes down after great earnings, with little or no discernible reason. But since you asked..."Whisper numbers", which were higher t

The TL;DR is that Apple often goes down after great earnings, with little or no discernible reason. But since you asked..."Whisper numbers", which were higher than the analysts actual guesses, which were lower than the actual numbers (but the actual numbers were still lower than the whisper numbers). Or it was "already priced in". All bullshit phrases to allow some to pretend to know more than they do, when they really don't know any more than you or I. Now, that's not to say there isn't some truth in my first paragraph. But if someone utters those same words, it doesn't mean it's true. At the end of the day (or after the end of the day, in this scenario), it is what it is. As a side note, I've seen Apple (a stock I've been trading for over 15 years) take a dive in after-hours, only to come roaring back in the morning at market open. Or maybe it gets pounded the next day, but comes roaring back next week. And one more thing: guidance is often "we can't keep this up for ever!", and some people believe them, despite the fact that Apple has been saying that for at least a decade.