Apple was downgraded on Monday at R.W. Baird, where the senior equity analyst responsible for the rating just isn't convinced that consensus estimates are correct.

"We think there is a real downside to estimates, and it's going to be tough for the stock to outperform over the next several months," said Will Power, whose firm downgraded Apple to "neutral" from "outperform" with a price target of $465, well under the current consensus price target of $627.72.