Micron (MU) Stock Plunges 7.7% Following Broadcom’s Cautious AI Revenue Guidance

Micron Technology's stock declined 7.7% on Thursday, wiping out $94 billion in market value, following Broadcom's cautious outlook on AI-related revenue growth during earnings. The sell-off reflects broader semiconductor sector weakness as investors reassess near-term AI demand expectations and growth trajectories.

Broadcom's earnings announcement triggered a significant repricing of semiconductor valuations, with Micron bearing the brunt of the market's revised sentiment on AI infrastructure spending. The company's stock loss of $94 billion underscores how sensitive memory chip manufacturers are to shifts in enterprise AI investment narratives. When industry bellwethers like Broadcom signal caution, investors immediately reassess exposure across the entire semiconductor supply chain, particularly memory providers like Micron that depend heavily on data center buildout cycles.

This decline reflects a critical reality in the AI boom: euphoric expectations around chip demand must confront the reality of actual deployment timelines and customer purchasing patterns. Broadcom's guidance suggests the inflection point for mainstream AI revenue adoption may be further out than consensus estimates, creating near-term headwinds for companies positioned as pure AI beneficiaries. Memory chips, while essential infrastructure, face particular pressure because customers can delay or optimize orders when growth expectations contract.

The $94 billion valuation erasure illustrates market concentration risk in semiconductor stocks and the velocity with which AI-driven gains can reverse. Investors heavily weighted toward memory chip exposure face a repricing that extends beyond Micron itself, affecting the broader semiconductor ecosystem that depends on coordinated capex cycles. This sell-off signals that market participants are rotating away from the most AI-sensitive segments toward either defensive positioning or names with diversified revenue streams less dependent on near-term AI inflection narratives.

• →Broadcom's cautious AI revenue guidance triggered a 7.7% single-day decline in Micron stock, erasing $94 billion in market capitalization
• →The sell-off reflects investor reassessment of near-term AI infrastructure spending and memory chip demand timelines
• →Semiconductor valuations remain highly sensitive to guidance shifts from industry leaders, creating volatility for dependent suppliers
• →Memory chip manufacturers face particular vulnerability to customer order delays when growth expectations contract
• →The decline suggests AI-driven gains in the chip sector may face consolidation as real deployment timelines become clearer