Amazon CEO Jeff Bezos laughs at a discussion at the Air Force Association's Air, Space and Cyber Conference in National Harbor, Md., Sept. 19, 2018. Andrew Harrer | Bloomberg | Getty Images

Customers worldwide ordered more items than ever from Amazon this holiday season, the company announced Wednesday. These sales could give the company a chance to beat its own outlook for the holiday season, which disappointed investors after its last earnings report. But investors will still have to wait for Amazon's fourth-quarter earnings to understand the impact of these sales since the company did not disclose the amount of revenue generated this season. Amazon's stock ended the day up 9.5 percent Wednesday.

Amazon had projected stagnant to minimal growth in operating income compared with the same time last year, which sent its stock plunging 10 percent when it reported its third-quarter earnings. It projected $2.1 billion to $3.6 billion in operating income for the fourth quarter of 2018, falling short of analyst expectations of $3.9 billion. During the same quarter in 2017, Amazon said it made $2.1 billion. WATCH: Amazon's stock once tanked 90%? But long-term investors still got rich Amazon said tens of millions of people signed up this season for free trials or paid memberships for Amazon Prime. The company said it sold millions more of its own devices, like the Echo Dot and Fire TV Stick 4K, compared with last year. Amazon said it also sold a record number of smart home devices including the Amazon Smart Plug, Ring Video Doorbell 2 and the iRobot Roomba 690.