A significant downturn in semiconductor stocks has prompted investors globally to question the durability of the recent Artificial Intelligence (AI) market boom and the extent of leveraged positioning within the sector.
Market Pullbacks and Index Performance
Semiconductor equities, which were central to this year’s robust market gains, experienced a severe week of declines. Investors across Asia and Europe began pulling back from stocks associated with AI advancements and other high-momentum names that had driven portfolio returns throughout the current year.
Specifically, the Philadelphia SE Semiconductor Index dropped 1.6% on Friday. Over the course of the week, the index fell approximately 10%, marking its largest weekly decline in over a year. By Friday, the index had fallen by slightly more than 20% from its peak recorded in late June, indicating that it has entered a bear market phase.
“The recent dip reflects profit-taking and increased scrutiny regarding the sustainability of AI capital expenditures,” stated Toni Meadows, head of investment at BRI Wealth Management. “Semiconductor stock valuations had priced in nearly flawless demand, which is unusual for what has historically been a cyclical industry, leaving stocks vulnerable at some point during such rapid growth.”
Conversely, one analyst suggested the market movement was less about underlying fundamentals and more about portfolio adjustments. Chuck Carlson, chief executive officer at Horizon Investment Services in Hammond, Indiana, commented, “I don’t think it has really anything to do about fundamentals as much as just repositioning of portfolios and just taking profits in stocks that have gone crazy.”
Global Market Indicators
Analysts pointed to several factors contributing to the sharp market reversal this month. For example, Chinese AI startup Moonshot unveiled a model claiming to be the world’s largest open-weight AI system, reigniting investor interest regarding the potential returns from massive AI investments by major U.S. tech firms.
Other signs of caution emerged globally: South Korea’s KOSPI was noted as being in a bear market last week, despite having risen nearly 62% for the year. Japan’s Nikkei index declined into correction territory on Friday, and Europe’s technology sector was among the biggest losers this week, following its largest quarterly jump since 2001 in June.
In comparison to the broader market, the S&P 500 Momentum Index—which tracks stocks within the S&P 500 that have shown sustained strong performance—pulled back 11% during July. This decline was significantly steeper than the less pronounced drop of under 1% seen in the overall S&P 500.
Concerns Over Investor Leverage
The sector weakness fueled concerns that investors may have become overextended or excessively leveraged. Tony Pasquariello, head of hedge fund coverage at Goldman Sachs, noted in a client communication that leverage has accumulated across the financial marketplace, citing increases in retail margin, assets under management for levered ETFs, and volume in short-dated options as examples.
Executives from banks serving large hedge funds observed that major institutional investors, who typically utilize leverage to amplify market movements and boost returns, have recently reduced their exposure to leading AI infrastructure companies. Walter Todd, chief investment officer at Greenwood Capital in South Carolina, remarked, People got way overextended on these names.
He added that many people were under the mistaken impression over recent months that these stocks would only appreciate. Consequently, if they bought positions using borrowed funds, they risked being forced to liquidate those holdings.
Despite signs of risk aversion, derivative traders appeared more focused on buying opportunities during dips and shifting into less congested market areas rather than withdrawing capital entirely. Chris Murphy, co-head of derivative strategy at Susquehanna Financial Group, stated that Investors have generally been rotating rather than broadly reducing risk.
However, some bullish activity was observed in options trading for top chipmakers, including SK Hynix, Micron Technology, and SanDisk around midday. Brent Kochuba, founder of the options analytic service SpotGamma, suggested that this pattern “suggests that a short-term oversold bottom may be in.”
Impact on Key Stocks
On Friday’s trading session, Nvidia shares closed 2.2% lower, while Intel dropped 2%, and Applied Materials fell by 5.6%. The memory chip company Micron saw a decline of 0.5%, and SanDisk finished down 4%. Separately, SpaceX’s stock plummeted 5.4%, following the failure of Starship’s 13th flight test, which added pressure after the stock had already dipped below its initial public offering price of $135 that week.
SK Hynix’s shares listed in the U.S. briefly fell below their offering price before recovering losses to finish slightly higher.
Attention is now turning toward quarterly earnings reports scheduled for next week from several major firms, including Alphabet and Tesla, along with semiconductor company Intel.
