KEY POINTS
- The Philadelphia Semiconductor Index crashed 10.3% last week, erasing $1.3 trillion in market value in the worst chip selloff since the 2022 bear market.
- Broadcom's AI revenue guidance miss — $16 billion versus the $17.2 billion consensus — was the catalyst, but hotter CPI data and profit-taking after massive YTD gains amplified the damage.
- Nvidia's $215.9 billion in fiscal 2026 revenue and $750 billion in committed hyperscaler capex for 2026 suggest this is rotation, not a structural breakdown in the AI trade.
The Philadelphia Semiconductor Index dropped 10.3% last week, erasing more than $1.3 trillion in market value in the most brutal chip selloff since the 2022 bear market. Nvidia temporarily lost its $5 trillion market cap crown. AMD gave back two weeks of gains in a single session. And every major name from Broadcom to Micron to Intel saw selling on volume that dwarfed anything since the COVID crash.
Now the question every semiconductor trader needs to answer: was that the bottom, or was it the beginning?
What Actually Happened
The selloff began Thursday, June 4, when Broadcom reported fiscal Q2 results that beat on revenue and earnings but disappointed on the one metric the market cared about most: AI chip revenue guidance. Third-quarter AI revenue guidance of roughly $16 billion landed below the Street consensus of approximately $17.2 billion. That $1.2 billion gap — just 7% below expectations — was enough to trigger a 13% single-day decline in Broadcom shares and drag the entire sector lower.
On Friday, the selling intensified. ARM Holdings and Intel led the rout as hotter-than-expected economic data raised fears that the Fed would stay on hold longer, compressing the multiples that had propelled chip stocks to record valuations. The SOXX fell another 4% on Friday alone, its worst two-day stretch since the regional banking crisis in March 2023.
The damage was not distributed evenly. Nvidia, which entered the week with a $5.1 trillion market cap and a relatively modest 25.4x forward earnings multiple, fell about 6%. AMD, trading at a far more demanding 84.4x forward earnings after its 66% year-to-date rally, dropped more sharply. The smaller names — Marvell, ON Semiconductor, Lattice — saw declines of 12% to 18%.
The Bull Case Is Still Intact
Strip away the panic and the fundamental picture has not changed. Nvidia reported fiscal 2026 revenue of $215.9 billion, representing 65% year-over-year growth. Hyperscalers — Microsoft, Amazon, Google, Meta, and Oracle — have committed to $750 billion in combined capital expenditures for 2026, the vast majority of it flowing to AI infrastructure. AMD's data center revenue hit $5.8 billion in Q1, up 57% year over year, and its MI450 AI accelerator launch in the second half of the year gives it a credible path to challenge Nvidia's dominance.
Broadcom's guidance miss was not a demand problem. It was a timing issue — the company flagged that some customer deployments shifted to the right by a quarter, not that orders were canceled. The $16 billion guidance still represents more than 40% year-over-year growth in AI revenue. In any other context, that would be celebrated. It only looked bad against a Street consensus that had gotten ahead of itself.
Jensen Huang reinforced this point publicly, telling CNBC on Friday that the selloff was a buying opportunity and that Nvidia's order book remained the strongest in the company's history. "The demand signal hasn't changed," Huang said. "What changed is the multiple people are willing to pay for it."
The Bear Case Deserves a Hearing
That said, the bears have legitimate arguments. The SOXX had risen 42% year to date before last week's selloff, and many chip stocks were trading at valuations that priced in years of perfect execution. AMD at 84x forward earnings needs to grow its data center GPU revenue 114% this year just to justify current levels. That is possible but leaves zero margin for error.
There is also the macro overlay. If today's CPI print comes in hot, the Fed stays on hold, and the interest rate environment that compressed tech multiples in 2022 could reassert itself. Higher discount rates mechanically reduce the present value of future earnings, and semiconductor stocks — with their growth profiles stretching years into the future — are among the most sensitive to that dynamic.
Finally, the Hormuz crisis creates a specific risk for chip supply chains. While semiconductor fabrication is concentrated in Taiwan and South Korea, not the Middle East, elevated energy costs raise input prices for fabs and packaging facilities. TSMC flagged a 3-4% increase in energy costs at its last earnings call, and those costs get passed through to customers.
Where to Watch
The SOXX bounced modestly on Monday, gaining 1.2%, but gave back half those gains as Trump's Iran comments hit. The key technical level is the 200-day moving average near 4,900; a close below that would signal a deeper correction and likely trigger systematic selling from trend-following funds.
For individual names, the divergence between Nvidia and AMD is worth watching. Nvidia's lower multiple and dominant market position make it the relative safe haven in the sector. AMD offers higher upside if AI spending accelerates but carries significantly more risk if the narrative shifts. Broadcom reports its next update in September — until then, its June guidance miss will hang over the sector like a cloud.
The semiconductor trade is not broken. But it needs a catalyst — either a resolution to the Hormuz crisis that eases inflation fears, or next quarter's earnings proving that AI demand has not peaked. Until one of those arrives, expect choppy, range-bound trading with violent rotations between buyers and sellers.
