On Friday, the semiconductor sector experienced a broad pullback. Leaders in the memory segment, Micron Technology and SanDisk, saw declines exceeding 2%, while Western Digital dropped over 3% in pre-market trading.
Chip design firms were also weak across the board, with NVIDIA, Advanced Micro Devices (AMD), Broadcom, Intel, and Marvell Technology all moving lower, and Qualcomm following suit.
Chip equipment manufacturers faced similar pressure, with Applied Materials and Lam Research both falling more than 4%.
Since June 22nd, the global chip stock market has collectively shed $3.3 trillion in market value by Friday's market open.
Multiple Factors Behind the Decline
Recent weeks have seen significant volatility in the chip sector, with a core market concern being whether massive corporate investments in AI infrastructure will yield returns commensurate with the outlay.
Costs across the AI supply chain continue to climb. Taiwan Semiconductor Manufacturing Company (TSMC) raised its full-year capital expenditure forecast this week, citing rising equipment procurement costs as a key driver.
Intensifying global competition in the AI field is further dampening market risk appetite. This was highlighted by the official launch of the Kimi K3 large language model by Chinese startup Moonshot AI, which industry observers note is currently the world's largest open-source commercial model available for local deployment by developers.
At the Shanghai World Artificial Intelligence Conference on July 17, 2026, visitors gathered at the Moonshot AI booth to experience the Kimi K3 model. The launch of this domestic Chinese model sparked immediate discussion, with experts stating its performance is comparable to flagship products from top U.S. labs. Leveraging cost advantages and offering open-source code for developer customization, the Kimi K3 and other domestic models are gaining significant global traction.
The release of this model underscores the rapid development of China's open-source AI ecosystem. Just a month prior, U.S. authorities restricted the overseas deployment and use of two large models, Fable and Mythos, from Anthropic, citing security concerns.
In related news, Bloomberg reported on Thursday that Alphabet Inc. (Google's parent company) is facing significant delays in the delivery schedule for its most powerful flagship AI model, Gemini 3.5 Pro.
Additional Market Perspectives
Chip companies remain core beneficiaries of the AI industry's expansion.
While Wall Street broadly maintains a bullish outlook on the AI thematic, the market requires corporate earnings reports to serve as a catalyst for sector and broader market gains. Investors generally acknowledge the long-term rationale for substantial AI capital investment.
Seema Shah, Chief Global Strategist at T. Rowe Price, stated in an interview this week, "What we really need to see sustained confirmation of, is the capital expenditure momentum from the big cloud players."
She added, "The cloud providers have to deliver strong earnings. They are the foundation of the entire AI ecosystem."
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