Amazon shares fell 4% in Frankfurt on Friday a day after the retailer's results showed weakness in its cloud computing unit and it forecast and lower-than-expected first-quarter revenue and profit.

Wall Street’s expectations on fourth-quarter earnings and revenue today, but sales in its all-important cloud computing business came up short, and guidance for the current quarter was light. As a result,

Amazon investors drove shares down sharply on Thursday due to weakness in the retailer’s cloud computing unit and lower-than-expected forecasts for first-quarter revenue and profit. Amazon’s shares fell as much as 5% in extended trade after the fourth-quarter earnings report,