Wall Street is mainly focused on Apple's iPhone sales in China and any guidance related to its March quarter, which could include iPhone SE4 sales.

Apple reported $18.5 billion in sales in greater China last quarter, comfortably below consensus estimates of $20.9 billion.

Apple shares rose 2% Friday morning, after the company reported stronger-than-expected earnings. Net income rose to $36.3 billion, topping analysts' estimates, as did earnings per share. iPhone sales fell nearly 1% on the year to $69.