Tech Giants Plan $828 Billion AI Infrastructure Spend, Triggering Market Concerns

Four of the largest hyperscalers – Amazon, Alphabet, Microsoft and Meta – together with SpaceX and its xAI unit disclosed plans to spend as much as $828 billion on capital expenditures in 2025. The outlay covers data centers, high-performance chips and other infrastructure needed for artificial-intelligence workloads. Company filings project Amazon’s 2026 capex at $220 billion, Alphabet up to $205 billion, Microsoft about $170 billion, Meta up to $145 billion and SpaceX up to $88 billion.

The scale of the spending now exceeds the market value of firms such as ExxonMobil and Mastercard and approaches the roughly $1 trillion the United States is allocating to defense this fiscal year. Analysts at Evercore and Bank of America expect AI-related capex to reach $1 trillion by 2027.

Stocks reacted sharply on Friday, with the Nasdaq falling 2.9% and the S&P 500 dropping 1.8%, marking their worst single-day performance since June. Nasdaq-100 companies collectively lost more than $1 trillion in market value, a move partly attributed to weak free-cash-flow signals from the sector.

Four of the five companies reported negative free cash flow for the third quarter, meaning their capital spending outpaced cash generated from operations. Microsoft remained an exception, staying cash-flow positive, but announced a $25 billion bond issue – its first in over nine years – to fund general corporate purposes, including potential capex.

Meta disclosed a $2.1 billion negative free-cash-flow figure for the quarter and plans to raise up to $95 billion through a new share issuance to support AI infrastructure. Oracle warned that it does not expect to return to positive free cash flow until the second half of its fiscal year ending May 2028, projecting at least $30 billion in free cash flow for the year ending May 2029.

Despite the heavy spending, cloud revenue continues to grow. Google’s cloud earnings more than doubled last quarter, Microsoft’s Azure business rose 48%, and Amazon Web Services expanded by about 39%, reflecting strong demand for compute resources.

"If these tech companies sneeze, the rest of the market would catch pneumonia," said Aleksandar Tomic, an economist and associate dean at Boston College.

"We do need infrastructure, we do need this capital, but, can they sustain it? I think that’s the big big question," Tomic added.

"Would it be more convenient if this type of acceleration and opportunity happened over 25 years and you could spread the CapEx over 25 years? Yeah, it might be more convenient, but that’s not the world that we live in, and that’s not the opportunity," Amazon CEO Andy Jassy told analysts.

Analysts note that while the surge in AI demand fuels higher cloud-service revenues, the long-term profitability of the massive infrastructure investments remains uncertain, and a slowdown could have broader economic implications.