Two of the world's largest technology companies, Microsoft and Alphabet, report quarterly earnings after the closing bell Wednesday, with Amazon following Thursday evening in a three day stretch that Wall Street has been treating as a pivotal test of the artificial intelligence boom.
The question investors are asking is straightforward even if the answer is not: can the enormous revenue these companies are generating from cloud computing and AI services keep up with the enormous sums they are spending to build it. Combined, Amazon, Microsoft and Alphabet are sitting on a backlog of contracted future business worth nearly 1.7 trillion dollars, while planning to spend as much as 600 billion dollars this year on data centers, chips and related infrastructure to meet that demand.
Microsoft, reporting its fiscal first quarter of 2027, will be watched closely for growth in its Azure cloud division, which the company itself had guided toward roughly 45 percent growth. Alphabet, reporting third quarter 2026 results, is expected to show continued strength in Google Cloud alongside its long running search advertising business, with analysts looking for total revenue growth above 25 percent from a year earlier. Both companies' stock moved higher in premarket trading Wednesday as investor sentiment toward AI linked technology names improved heading into the results.
The results follow a mixed start to the week for the sector. Meta Platforms, which reported its own results the previous week, saw its shares fall roughly 7 percent after posting its first negative free cash flow since its 2012 initial public offering, a reminder that heavy AI infrastructure spending is beginning to show up clearly in companies' bottom lines. That outcome has sharpened the stakes for Microsoft, Alphabet and Amazon as they report this week, since investors are looking for evidence that cloud revenue growth is accelerating fast enough to justify the spending.
Watch Wednesday evening's results and earnings calls for updated 2027 capital spending plans, and watch Amazon's results Thursday for how AWS cloud growth compares with Microsoft and Alphabet's cloud businesses.
Why are these earnings considered so important?
They will show whether booming AI and cloud revenue is growing fast enough to justify hundreds of billions of dollars in planned infrastructure spending.
When does Amazon report?
Amazon is scheduled to report its results after the market close on Thursday, October 29.