Amazon on Tuesday returned to the bond market with plans to raise at least $25 billion through an eight-part debt offering, its latest move to bankroll a $200 billion capital-spending campaign built around artificial intelligence.

The sale, which underwriters have been told will be Amazon's final debt issuance of 2026, pushes the online retailer's borrowing this year past $89 billion and underscores how the largest U.S. technology firms have outstripped what even record cash flows can fund on their own as the AI arms race intensifies.

Pricing

Amazon's longest-dated bonds are being priced higher than the company's previous debt sale in March, Semafor reported, even as credit spreads for top-tier borrowers tightened during the intervening months. The pickup suggests investors want more compensation to lend to Amazon at the long end of the curve, whether because of the sheer volume of technology-sector paper now in the market or lingering questions about how quickly the AI infrastructure Amazon is building will earn its keep.

What the money buys

An Amazon spokesperson told CNBC the proceeds will fund general corporate purposes, including "supporting investments, funding future capital expenditures and debt repayment." Amazon projects capital expenditures will reach $200 billion in 2026, up from $131 billion in 2025, with most of the outlay directed at data centers, chips and other equipment.

"We regularly evaluate our operating plan and make financing decisions, like issuing bonds, accordingly," the spokesperson said.

The running tally

Tuesday's offering follows roughly $54 billion in bonds Amazon sold earlier this year in the United States and Europe, a $10 billion Canadian debt raise in June and a $15 billion U.S. bond offering in November. People familiar with the plan told CNBC's David Faber that Amazon has told its underwriters it will not return to the debt markets again this calendar year.

Big Tech's cash squeeze

Amazon is not alone in tapping outside capital to feed its AI plans. Alphabet last month sold $85 billion in new stock, its first equity offering since going public in 2005, and Meta has structured its data-center commitments to keep them off its balance sheet. Semafor's Liz Hoffman wrote that the three companies have "reached the limits of what their cash generation can support," even though they remain "some of the biggest cash generation machines capitalism has ever produced."

The sequential shift — from operating cash to debt to equity — traces how quickly AI infrastructure costs have outrun the sector's ability to self-finance. Amazon Web Services still generates the bulk of the parent company's operating income, but the chips, land and power required to build next-generation training clusters have pushed the calculus into the capital markets.

Counterpoint

Tuesday's coverage came from center-leaning business outlets only, and the sale had no visible institutional pushback in press accounts. Analysts skeptical of returns on generative-AI infrastructure and bondholders wary of the sector's mounting leverage did not appear in the reporting, nor did critical voices from the political left or right that have begun to question Big Tech's AI arms race. Final coupons for the eight tranches had not been disclosed by press time.

What comes next

With Amazon telling underwriters it will not return for more debt this year, the next signal on Big Tech's AI financing appetite will come from Alphabet, Microsoft and Meta.