Apple Earnings Preview

is scheduled to report fourth-quarter earnings on Tuesday after the close. Consensus estimates call for $2.59 per share, with $67.5 billion in revenues. Analysts are looking for iPhone growth of 30.4 percent, or 39 million phones, which will mark the fastest growth rate in two years. In the past, this number has been somewhat volatile due to supply constraints, which is another metric analysts will be focusing on.

Free cash flow will be scrutinized as well, especially in light of the dividend and share buybacks. Expectations are high for Apple, with analysts $67.3 billion in sales exceeding the company's guidance of $63.5 billion to $66.5 billion. Shares of Apple traded recently at $113.70, up 0.62 percent.