AI Chip Stocks Tumble on Spending Fears and Chinese Competition
AI linked semiconductor stocks fell sharply on July 28, 2026, with AMD down nearly 9%, Nvidia off about 2%, and Marvell and Intel also declining, according to Bloomberg and Yahoo Finance. The drop reflects worry over circular financing between Nvidia and OpenAI and reports of Chinese progress in lithography machines, alongside growing doubt about the sustainability of massive AI infrastructure spending.
AI Chip Stocks Tumble on Spending Fears and Chinese Competition
The biggest AI linked semiconductor stocks suffered a sharp selloff on July 28, 2026, as global tech trading was pressured by doubts over the sustainability of billion dollar AI infrastructure spending and by signs of rising Chinese competition in chipmaking equipment, according to reporting from Bloomberg, Yahoo Finance and 24/7 Wall St.
How big the drop was
Advanced Micro Devices fell between 8.85% and roughly 10% on the day, while Nvidia dropped about 2%. Marvell lost around 7% and Intel about 6%, according to 24/7 Wall St and TradingKey. The move also dragged down Asian markets tied to the chip supply chain, with South Korea's Kospi and Japan's Nikkei 225 both closing lower, Bloomberg reported.
The trigger: a financing scheme worrying investors
According to 24/7 Wall St, reports that Nvidia was in talks to guarantee roughly $250 billion in financing for an OpenAI data center in Ohio, alongside separate discussions about financing up to $350 billion in OpenAI chip purchases, raised alarms among investors over what the outlet calls circular spending: suppliers financing their own customers so they buy more from those same suppliers.
The shadow of Chinese lithography
Another factor cited by Bloomberg and Whatfinger Business was a report that a Chinese state backed company had begun mass producing immersion deep ultraviolet lithography machines, technology central to advanced chip manufacturing. The news reignited fears that semiconductor manufacturing capacity, today concentrated among a handful of suppliers such as ASML, could become less scarce, pressuring the sector's future margins.
From greed to fear, according to Bloomberg
Bloomberg described the move as a shift in market mood, from greed to fear, at a moment when the valuation of AI linked tech giants already priced in very optimistic expectations. The realization that the data center investment cycle may be more leveraged and more circular than the market assumed, combined with Chinese competition, was enough to trigger widespread profit taking.
Why it matters for Brazilian agencies and SMBs
For anyone selling AI customer service and marketing automation in Brazil, July 28 does not change the cost of using AI models tomorrow, but it is a warning sign about the financial soundness of the chain that underpins these tools. Much of the competitive cloud and API pricing Brazilian agencies pay today depends on billions of dollars in debt and circular financing among a handful of companies. If that arrangement shows cracks, AI infrastructure price increases could arrive faster than expected, reinforcing the importance of negotiating flexible contracts and closely tracking cost per token.