Amazon will report first-quarter earnings after market close. The company expects its cloud division to grow revenue by 26 percent, signaling continued momentum in a business that has become central to its profit engine.

Amazon Web Services, the cloud unit, generates the bulk of the retailer's operating profit despite representing a smaller share of total revenue. The 26 percent growth rate reflects strong demand from businesses shifting operations to the cloud and investing in artificial intelligence infrastructure.

Investors watch AWS performance closely because it funds Amazon's other ventures, from retail to advertising. A slowdown in cloud growth could raise questions about the company's ability to fund expansion and return cash to shareholders.

The earnings report arrives as Amazon faces intensifying competition from Microsoft and Google in cloud services. Both rivals have aggressively pushed AI capabilities to win market share from AWS.

Wall Street will scrutinize three areas. Revenue growth across all segments matters, but AWS expansion takes priority. Operating margins show whether Amazon controls costs effectively. Management guidance for coming quarters signals confidence in sustained growth.

Amazon's results could influence how investors view the broader tech sector and cloud infrastructure spending in 2024.