Chip slump erases $1.3 trillion in stock market value
US-traded chipmakers fell Friday, wiping about $1.3 trillion in market value, after Broadcom’s earlier weak quarterly report on custom AI-chip demand. The PHLX chip index dropped 10.3% and was down 12% over two sessions. Nvidia fell ~6% (>$300B), Micron -13% (~$150B), Marvell -17%, and AMD -11%.

Near-term momentum likely remains fragile as investors de-risk high-multiple AI semis following Broadcom’s demand miss.
Nvidia fell about 6% and lost more than $300B in market cap as the AI chip selloff intensified after Broadcom’s weak outlook.
Choppy-to-down bias over the next several sessions; rallies may face supply from dip-buyers unwinding.
Background
The PHLX semiconductor index is described as having hit a record high on Wednesday, then reversing sharply after Broadcom’s quarterly report.
Why it matters
Broadcom’s custom AI chip demand falling short appears to have triggered a fast read-across into other AI-heavy semiconductor names, amplifying risk-off sentiment tied to stronger jobs data and higher-rate worries.
Market relevance
This is a catalyst-driven sector liquidation: Broadcom’s demand miss plus macro rate sensitivity is pressuring the AI semi complex simultaneously.
Market effects
Signals a sector-wide repricing of AI semiconductor demand expectations after Broadcom’s custom AI chip demand shortfall.
US-focused selloff spills into broader equities as higher-rate worries also hit the S&P 500.
AI chip demand concerns can propagate to global supply chains and memory/compute equipment sentiment worldwide.
Alternative perspectives
The strategist quoted suggests the semiconductor bull market may not be over; the selloff could be an overbought unwind rather than a structural demand break.
The article notes the PHLX chip index is still up ~73% YTD, implying dip-buying capacity may return if rates stabilize and no further demand misses appear.
Key entities
- indexPHLX Semiconductor Index
Chip index slumped 10.3% on Friday and was down 12% over two sessions.
- companyBroadcom
Custom AI chip demand fell short of expectations in its quarterly report; shares fell 7.9%.
- companyNvidia
Fell about 6% and lost more than $300B in market cap during the selloff.


