Alphabet NASDAQ:GOOG, the parent company of Google; Amazon NASDAQ:AMZN, the e-commerce and cloud-computing company behind Amazon Web Services; Meta Platforms NASDAQ:META, the social-media company expanding its artificial intelligence infrastructure; Microsoft NASDAQ:MSFT, the software and cloud-computing group; and Oracle NYSE:ORCL, the enterprise software and cloud provider, have collectively added approximately $350 billion to their debt obligations over the past five years. The five companies, which are the largest spenders on new data centers in the U.S., are borrowing heavily to support an artificial intelligence investment cycle that management teams believe could generate substantial future revenue. Investors have generally supported the expansion by purchasing bonds issued across several currencies, although Amazon's $25 billion debt offering received an unusually cautious response this week. This reaction suggests that investors may be becoming more selective about how much additional borrowing they are willing to fund as spending on artificial intelligence infrastructure continues to rise.
The financial impact remains relatively manageable for several of the companies because their businesses continue to generate significant profits and cash flow. Combined interest expense for the five companies exceeded $10 billion last year, more than double the level recorded in 2019, while Google generated $64 billion in operating cash flow after capital expenditure at the end of the March quarter. However, Amazon's free cash flow turned negative during the quarter ended March 31, while Oracle's cash burn is expected to accelerate after its debt reached approximately 2.5 times sales in 2025. S&P Global Ratings, a credit-rating agency, lowered Oracle's rating to BBB-, one level above junk status, citing the company's expanding artificial intelligence spending. Equity investors have also become increasingly cautious, with only Alphabet outperforming the S&P 500 this year, while Microsoft and Oracle shares have declined by more than 20%.
Management teams continue to argue that strong demand for artificial intelligence computing and future cloud-service revenue could justify the investment. Amazon Chief Executive Officer Andy Jassy said in April that customer commitments to use much of the new capacity being developed by Amazon Web Services gave him high confidence that the spending would be monetized, while Meta Chief Executive Officer Mark Zuckerberg said demand for artificial intelligence computing power continued to exceed available supply. Investors preparing for quarterly earnings later this month may focus more closely on future spending plans, funding methods and the timing of potential returns. Intel NASDAQ:INTC, the semiconductor company that was the world's largest chipmaker until 2022, provides a cautionary example after accumulating debt to finance shareholder returns, acquisitions and manufacturing expansion while failing to produce competitive artificial intelligence chips. Intel subsequently lost market share, reported declining revenue and moved into losses, with Wall Street expecting 2026 to become its third consecutive unprofitable year. The hyperscale cloud companies remain far from Intel's financial position, but their growing debt loads and rapidly expanding capital requirements suggest that balance-sheet discipline could become an increasingly important factor for investors evaluating the artificial intelligence investment cycle.