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Amazon.com (AMZN)  beat top and bottom line estimates for the fourth quarter, but investors may be focusing more on its light guidance for the first quarter. 

After the close Thursday, Amazon reported earnings per share of $6.04, versus analyst estimates of $5.65, and revenue of $72.4 billion versus estimates of $71.9 billion. But it issued Q1 guidance of revenue between $56 billion and $60 billion, short of consensus estimates of $60.83 billion, and operating income of $2.3 billion to $3.3 billion, roughly in line with a $3.09 billion consensus. 

Shares of Amazon fell slightly 0.6% to $1,715.05 after the results were announced. 

TheStreet's tech columnist, Eric Jhonsa, is live blogging the company's earnings report and call with analysts, which is scheduled for 5:30 p.m. ET.