Micron Technology and Nvidia led a fresh selloff in semiconductor stocks Tuesday after newly reported details about Anthropic's financial progress intensified investor doubts about whether the AI industry's massive spending can be sustained by actual revenue.
Micron, which supplies the high-bandwidth memory chips that power AI data centers, fell sharply in intraday trading, while Nvidia — the dominant maker of AI accelerators and the most valuable public company in the world — slid alongside it. The Philadelphia Semiconductor Index, a benchmark tracking 30 major chipmakers, moved lower as the losses spread across the sector.
The trigger was a report on Anthropic's financials that raised questions about how quickly the AI developer is converting its technology into profit. Anthropic, the San Francisco company behind the Claude chatbot and a major Nvidia customer, has raised billions from Amazon and Google but has not disclosed a timeline for reaching profitability.
The concern rippling through markets is straightforward: if leading AI developers cannot demonstrate durable revenue growth, the case for the roughly $200 billion in annual capital expenditure that hyperscalers like Microsoft, Google, Amazon and Meta have committed to data-center buildouts weakens considerably. Those buildouts are the primary source of demand for Micron's memory chips and Nvidia's GPUs.
Micron is especially exposed to any pullback in AI infrastructure spending. The Boise, Idaho-based company has staked its turnaround on high-bandwidth memory, or HBM, the specialized stacked memory that Nvidia's H200 and Blackwell chips require. Micron's HBM capacity for 2025 was sold out as of its most recent earnings call, according to statements from CEO Sanjay Mehrotra.
Tuesday's move extends a pattern that has defined chip trading for months. Semiconductor stocks have swung violently on any signal — positive or negative — about the pace of AI adoption, with Nvidia alone losing and regaining hundreds of billions in market value in single sessions.
Investors have grown more discriminating about AI spending since the start of the year. Companies that can point to concrete AI revenue have been rewarded; those reliant on speculative future demand have been punished. Anthropic competes directly with OpenAI, which has projected $11.6 billion in revenue for 2025 but is also not expected to be profitable this year.
The selloff also hit smaller AI-linked names. Arm Holdings, Broadcom and AMD traded lower Tuesday, though none matched Micron's percentage decline. Analysts at several Wall Street firms have noted that memory pricing, not AI sentiment, remains the key variable for Micron's earnings power through the rest of the fiscal year.
Nvidia reports quarterly earnings later this month, a result that will serve as the clearest test yet of whether the AI infrastructure buildout is holding pace or decelerating.
