The sell-off in artificial intelligence-related stocks deepened sharply on Tuesday, sending chip company shares tumbling and dragging European equity markets into mixed territory. The Stoxx Europe 600 managed a marginal gain of 0.1 per cent, but the UK's FTSE 100 fell 0.1 per cent as technology losses overwhelmed gains in defensive sectors such as healthcare and utilities. The retreat extended a global slide that began in Asian trading, where Japan's Nikkei and South Korea's Kospi both declined on heavy selling of semiconductor stocks.
The intensifying rout reflects a growing reassessment among investors of the high valuations that have propelled AI and chip stocks to record levels over the past year. Concerns have mounted that the massive capital expenditure by technology giants on AI infrastructure may not deliver the expected returns as quickly as hoped. This has triggered profit-taking and a shift towards more defensive positions, particularly in the face of uncertain macroeconomic conditions.
Semiconductor companies, which had been the primary beneficiaries of the AI boom, bore the brunt of the sell-off. Analysts pointed to a potential oversupply of advanced chips and slowing demand from some cloud-computing clients as factors behind the slump. The sector's volatility has increased in recent weeks, with investors closely watching earnings reports from major chipmakers for signs of weakness.
Oil prices added to the subdued mood, with Brent crude falling 2.7 per cent to $85.95 a barrel. The drop was driven by concerns about weakening global demand and the possibility that OPEC may increase output later in the year. Lower oil prices, while beneficial for consumers, often signal a dimming outlook for economic growth, which can amplify risk aversion in equity markets.
Against this backdrop, consumer goods giant Unilever stood out with a strong first-half earnings report. The company said it delivered "a strong volume-led performance" in the first six months of the year, with the second quarter achieving its best volume quarter in more than a decade. Unilever upgraded its full-year outlook, citing consistent execution and improved operational discipline. The results provided a bright spot in an otherwise cautious market, demonstrating that companies with resilient consumer demand and pricing power can still outperform.
The divergence between the AI-driven technology sell-off and the relative strength of consumer staples underscores a market that is increasingly discriminating between sectors. While growth stocks suffer from valuation concerns, value and defensive stocks are attracting inflows as investors seek safety. This rotation could continue if macroeconomic data weakens further or if central banks signal a prolonged period of high interest rates.
Global market participants are now awaiting key earnings reports from leading semiconductor firms, which could determine the direction of the AI trade in the coming weeks. A disappointing set of results could trigger a deeper correction, while positive surprises might halt the sell-off. Central bank meetings, particularly the Federal Reserve's stance on rates, also remain a critical factor for market sentiment.
The sell-off serves as a reminder of the fragile nature of markets that have become heavily dependent on a single theme. The AI frenzy has driven a significant portion of the equity rally since late 2023, and any sustained weakness in that sector could have broader implications for global stock indices. For now, caution prevails, and investors are adjusting their portfolios accordingly.



