The stock market fell sharply this week as semiconductor stocks plunged into bear market territory, dragging major indexes lower and raising questions about the staying power of the artificial intelligence boom. The S&P 500 ended the week down 1.55% while the tech-heavy Nasdaq fell 2.9%, according to Reuters, as the PHLX Semiconductor Index (SOX) crossed the threshold for a technical bear market—a 20% decline from its recent peak.
The semiconductor index dropped nearly 20% from its June 22 record high, with Thursday’s 4.3% decline bringing it to the brink of the 11,707.78 closing level that officially confirms a bear market, according to MarketWatch. All 30 constituents of the index were lower from the benchmark’s June peak, signaling broad weakness across the sector.
The pullback reflects a shift in investor sentiment after a stunning spring rally in chip stocks. Investors are now questioning whether massive artificial intelligence infrastructure investments will justify the lofty valuations, according to MarketWatch. Memory-chip giants Micron, Samsung, and SK Hynix have already crossed the 20% decline threshold into bear market territory, as reported by Crypto Briefing.
Taiwan Semiconductor Manufacturing Co., which reported record quarterly profit, saw its shares tumble about 5.6% this week despite the strong earnings, illustrating investor skepticism even in the face of solid results. South Korea chipmaker SK Hynix experienced extreme volatility, with its American depository shares down nearly 14% on Thursday following its recent initial public offering, according to MarketWatch.
The weakness in semiconductors is tied to broader concerns about whether companies will continue spending at current levels to build out AI infrastructure. A Chinese startup’s release of a powerful new AI model and Meta’s announcement of plans to develop AI computing capacity for sale have fueled fears of overcapacity in the sector, according to Yahoo Finance and other sources. Wall Street expects semiconductors to see 131% earnings growth in the second quarter, but some analysts question whether this growth can be sustained.
The chip selloff has triggered a rotation into other market sectors. The S&P 500’s financials sector logged back-to-back record closes following strong bank earnings, while the Dow Jones Transportation Average was up more than 30% for the year near record territory, according to MarketWatch. The State Street SPDR S&P Retail ETF ended near its highest level since early 2022, suggesting investors are moving capital into areas that could benefit from a solid economy.
Historically, the SOX index records pullbacks frequently. In the past decade, the index recorded six pullbacks of 20% or more and 31 pullbacks of at least 10%, compared with only two S&P 500 pullbacks of at least 20% and eight of at least 10%, according to Dow Jones Market Data cited by MarketWatch. Some analysts view the current weakness as a healthy broadening of the market rather than a red flag, though concerns about the AI trade’s longer-term prospects remain.
Sources
- MarketWatch — PHLX Semiconductor Index decline details, constituent performance, analyst commentary on profit-taking and sector rotation
- Reuters — Weekly S&P 500 and Nasdaq declines, market overview
- Yahoo Finance — Semiconductor stock selling pressure, Chinese AI model impact, investor sentiment
- Crypto Briefing — Memory-chip giants’ bear market status
