Key Points
PHLX Semiconductor Index crashed 10.3% on June 5, worst day since March 2020.
Nvidia lost $300 billion, Micron fell 13%, AMD dropped 11% in single session.
Broadcom's weak AI-chip guidance triggered $1.3 trillion sector selloff.
S&P 500 fell 2.6% as jobs data raised rate hike fears.
U.S. semiconductor stocks collapsed on June 5, wiping out $1.3 trillion in market value in a single day. The PHLX Semiconductor Index fell 10.3%, its worst one-day drop since March 2020. Broadcom’s weak quarterly guidance triggered the selloff, raising questions about AI chip demand sustainability. Nvidia lost over $300 billion in value, while Micron and AMD fell 13% and 11% respectively. The rout matters because semiconductors drove the market’s gains all year, and this reversal signals investor caution about valuations and earnings expectations.
Broadcom’s Miss Sparks Sector Collapse
Broadcom reported disappointing results for its custom AI-chip business, failing to meet extremely high expectations built into chip stock valuations. The company fell 7.9% on Friday, with its two-day decline approaching 20%. Analysts at Wall Street cited the weak guidance as the trigger for broader selling across the semiconductor complex.
Nvidia, Micron Lead the Damage
Nvidia fell roughly 6%, erasing more than $300 billion in market value. Micron tumbled 13%, while Marvell Technology dropped 17% and AMD lost nearly 11%. The 10 biggest decliners accounted for $923 billion of the $1.3 trillion total loss. Taiwan Semiconductor Manufacturing, Broadcom, and Micron each shed more than $100 billion in value individually.
Jobs Data Adds Pressure to Growth Stocks
A stronger-than-expected U.S. jobs report raised fears of higher interest rates, adding downward pressure on expensive technology stocks. The S&P 500 fell 2.6%, snapping a nine-week winning streak. The Nasdaq 100 showed weakness with 35 advancers against 65 decliners, indicating concentrated selling in tech-heavy names. Market internals suggest this is not a full market collapse, but rather a focused unwind in the hottest trade.
Sector Overbought But Not Finished
Wells Fargo strategist Ohsung Kwon described the semiconductor sector as overbought but stopped short of calling the selloff the end of the AI chip boom. The PHLX Semiconductor Index remains up 73% year to date despite the two-day 12% decline. Investors are now questioning valuations and AI demand durability after months of automatic “buy the dip” behavior. If semiconductors do not stabilize early next week, selling could spread into the broader market.
Final Thoughts
The $1.3 trillion chip selloff reflects a sharp repricing of AI expectations, not necessarily the end of semiconductor strength. Investors must now distinguish between a buying opportunity and a warning sign of slower demand ahead.
FAQs
Broadcom’s weak AI-chip guidance raised concerns about slowing AI demand growth. A stronger jobs report also increased rate hike worries, pressuring expensive growth stocks.
U.S. semiconductor stocks lost $1.3 trillion in one day. Nvidia dropped over $300 billion, Micron fell 13%, and AMD declined 11%.
Wells Fargo strategist Ohsung Kwon views the sector as overbought but doesn’t believe the selloff ends the semiconductor bull market. The index remains up 73% year-to-date.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Huzaifa Zahoor
Co FounderHuzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.
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