Global Chip Stocks Tumble as Surprise US Inflation Data Triggers AI Sell-Off

Inflation Data Rattles Markets, Sparking Tech Rout

A hotter-than-expected inflation report from the United States has poured cold water on market optimism, intensifying concerns that the Federal Reserve will be forced to raise interest rates again. The news has sent investors scrambling for safer assets, punishing sectors that rely on cheap borrowing.

The Stubborn Numbers

Headline inflation reached 3.7% for the year, ahead of expectations. A significant portion of this increase was driven by rising fuel costs, with the energy index jumping 5.2%. Even when volatile food and energy costs are excluded, core prices climbed 2.6% annually, also beating forecasts. The data prompted the 10-year US Treasury yield, a key benchmark for global borrowing costs, to surge above 5.3%.

Following the consumer price data, upcoming producer price figures will be closely watched. Federal Reserve officials have indicated they want to see more data before committing to their next move, but another high reading makes a rate hike at the end of October a distinct possibility. In response to the data, traders increased their bets on another rate rise before the year is out.

Investors Pivot to Defensive Stocks

This high-rate environment makes it more expensive for companies to borrow and for consumers to spend. Consequently, investors have been selling off shares in technology and retail, instead favouring defensive sectors. Companies in consumer staples, which provide everyday essentials like food and toiletries, have seen gains. Key examples include Walmart, Coca-Cola, and Procter & Gamble. Healthcare firms such as UnitedHealth and Merck also performed well, as demand for their products tends to remain stable regardless of the economic climate.

Global Chip and AI Stocks Tumble on Funding Fears

The fallout from the US inflation figures was felt most acutely in the semiconductor industry, with markets from New York to Seoul experiencing a sharp downturn. The central fear is that higher interest rates will make it too expensive for companies to fund the massive investment required for the AI revolution and other capital-intensive projects.

The View from Seoul

South Korea’s main stock market, the Kospi, plunged a staggering 7.57%, its seventh consecutive day of declines. The drop was so severe that it triggered automatic circuit breakers, halting all trading for 20 minutes. Chip giants Samsung Electronics and SK Hynix fell by 9.48% and 11.06% respectively. The Kospi index has now shed 21% of its value over the seven-day losing streak, driven by heavy selling from foreign investors.

The Debt Dilemma for AI and Energy

The rout in the US highlights the reliance on debt for many emerging technology sectors. Firms like CoreWeave, which rents out powerful Nvidia chips, have borrowed heavily to expand. As borrowing costs rise, investors are questioning the sustainability of their business models.

This squeeze is also hitting the nuclear energy sector. Companies like Energy Fuels and Uranium Energy, which are years away from generating profits, are finding it harder to finance their ambitious plans. In contrast, established operators like Constellation Energy, which already have active reactors, are better positioned. This dynamic is causing investors to favour companies that are already producing power over those that are only promising it in the future.

However, a report that AI firm Anthropic generated $16.8 billion in quarterly revenue ahead of a planned IPO provides a powerful counter-narrative, suggesting that the revenues needed to pay for the AI build-out are beginning to materialise.

Corporate Earnings Present a Mixed Picture

Amid the market turmoil, company earnings reports have provided a varied view of the corporate landscape, with some firms showing remarkable strength while others reflect the broader economic pressures.

TSMC's Record Quarter Defies Market Gloom

Taiwan Semiconductor Manufacturing Co. (TSMC), the world's largest chip manufacturer, announced a record-breaking quarterly profit for the sixth consecutive time. Net profit surged 68.7% from the previous year to $23.59 billion. The company’s operating margin was an impressive 58.7%, exceeding its own guidance and showcasing its strong pricing power. Crucially, the company also projected that its fourth-quarter sales would be around 14% higher. This performance, driven by demand for AI chips, stands in stark contrast to the market's fears about affordability. Despite the stellar results, TSMC's US-listed shares fell, swept up in the wider tech sell-off.

US and European Banks Show Diverging Fortunes

Bank earnings have revealed a clear trend. Morgan Stanley reported a 41% rise in stock trading revenue, with its wealth management division attracting a record $232.4 billion in new assets. Similarly, Bank of America saw a 10% increase in stock trading. However, both banks reported a decline in their bond trading businesses. This pattern mirrors results from JPMorgan and Goldman Sachs earlier in the week. European companies, meanwhile, are reportedly staging a comeback, with third-quarter earnings up significantly, led by technology and energy sectors.

Pharmaceuticals Face Different Futures

Big Pharma is also showing a split in performance. Eli Lilly has seen its quarterly sales jump by 48%, while AbbVie is successfully replacing lost revenue from its flagship drug Humira with newer products. However, Merck faces a challenge with slowing growth and the patent on its blockbuster cancer drug Keytruda set to expire in 2028, highlighting the constant pressure on drugmakers to innovate.

Broader Economic and Geopolitical Signals

UK Economy Shows Surprise Growth

The British economy unexpectedly grew by 0.1% in August, defying forecasts of a 0.1% contraction. The growth was driven by a solid 1.2% rise in manufacturing output, which helped offset a decline in consumer-facing services like restaurants. The figures show a split in the economy, with businesses remaining resilient while households appear to be cutting back on spending.

Bitcoin Falters as Middle East Tensions Escalate

Cryptocurrencies reacted negatively to the inflation news, with Bitcoin falling below $81,000 as investors moved away from riskier assets. US-based Bitcoin investment funds saw outflows of over $261 million.

Meanwhile, geopolitical risks in the Middle East have broadened and intensified. Following the sinking of the GFS Pride, a second Singapore-flagged vessel, the GFS Giselle, was also struck in the Strait of Hormuz, a critical shipping lane. Iran's Islamic Revolutionary Guard has reportedly made direct threats, stating the country is "impatient to sink American warships." These developments indicate the conflict's impact now extends beyond oil tankers to the ships that carry everyday consumer goods, threatening global supply chains.

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