Markets opened under pressure as losses in semiconductor equities deepened, raising fresh questions about whether the AI-driven demand narrative can justify the heavy capital outlays and elevated valuations that have supported the sector this year.
SK Hynix reported a dramatic increase in operating profit for the April-June period - a rise of more than sixfold, quantified in the company release as 557% - yet the result still fell short of analysts' elevated expectations. That shortfall appeared to crystallize investor worries that brisk spending on AI infrastructure may not translate into consistent, long-term returns.
The broader technology cohort is now on edge ahead of a string of major earnings reports this week. Microsoft and Meta, two of the market's largest AI beneficiaries, are due to publish results later in the day and are widely seen as critical tests of the AI trade's durability. Sentiment remains fragile after last week's reports from Alphabet and Tesla, which included negative cash flow statements and contributed to investor concern about the trade-off between heavy investment in AI capacity and the need to preserve cash generation and profitability.
South Korea's KOSPI index plunged 12% during the session, activating a 20-minute trading halt - a mechanism that has become more common amid extreme intraday moves. The sell-off followed a 10% drop in the prior session. Despite the index's earlier surge this year on the back of AI enthusiasm, the sharp declines leave it facing roughly a 35% fall for July, its worst month on record.
Market nerves were further heightened in energy markets after U.S. Central Command reported the interception of Iranian ballistic missiles. The development prompted a jump in oil prices and ended a brief period of calm in commodity markets.
With the Federal Reserve set to issue a policy decision, investors are parsing the likelihood of further tightening. Current pricing implies roughly a one-out-of-three chance of an interest rate increase, even as many market participants broadly expect the central bank to maintain rates. Policymakers have become more vocal about inflation risks, and attention has concentrated on comments from Fed Chair Kevin Warsh for guidance on the path for interest rates.
European markets will also be watching corporate results for signals on corporate profitability and resilience. A slate of earnings expected to influence sentiment includes Danone, Hermes, L'Oreal, UBS, Airbus, Meta, Microsoft and Qualcomm.
Market context and immediate drivers
- Semiconductor sector: A deepening sell-off led by major chip names has become the dominant market narrative, driven by concerns over the sustainability of AI-related demand and whether heavy investment can deliver durable returns.
- Tech heavyweight earnings: Microsoft and Meta are positioned as key near-term tests of investor appetite for AI-linked growth versus the need for stable cash flow.
- Monetary policy: The Fed policy decision and commentary from its chair are focal points amid inflation worries and debate over whether rates will be adjusted further.
What to watch next
- Results from Microsoft and Meta for signs of how AI investment is translating into revenue and cash flow.
- Fed Chair Kevin Warsh's comments for indications of the policy outlook and the degree to which inflation concerns might prompt additional tightening.
- Follow-through in Korean equities and semiconductor stocks after the halts and large intraday moves, and the reaction of oil markets to geopolitical developments.