AI Investment Jitters Rattle Global Tech Markets

Concerns over heavy spending in the artificial intelligence sector led to a significant stock market sell-off, with the tech-heavy Nasdaq 100 index briefly entering correction territory. The downturn began in Asian markets, where major memory manufacturers Samsung Electronics and SK Hynix saw their stocks decline by over 15%.

The sell-off extended to U.S. markets, affecting companies central to the AI supply chain. Memory firm Micron fell nearly 9%, while server provider Dell dropped over 8% despite recent strong sales. In contrast, the Dow Jones Industrial Average rose as investors moved capital from technology into other industries perceived as less volatile.

Underlying the market anxiety are several factors, including concern about the return on massive AI investments, potential circular financing arrangements between major tech firms, and growing competition from Chinese chipmakers. Upcoming earnings reports from hyperscalers including Amazon, Meta, and Microsoft are being closely watched for indications of future spending plans.

Private conversations with the AI chatbot Claude, including some that contained sensitive medical information and personal contact details, were discovered in public search engine results. The issue arose from Claude's feature that allows users to create shareable links to their chat sessions.

Anthropic, the creator of Claude, stated that chats only become public if users post the shareable links on platforms accessible to web crawlers. However, a Google spokesperson noted that website owners are given tools to control whether their pages are indexed for search. Microsoft, which operates the Bing search engine, added that developers can use specific tags to block indexing, which were reportedly absent from the exposed pages.

While the links have since been removed from search results, the incident highlights potential data privacy vulnerabilities in AI applications. It remains possible that third parties accessed and copied the data before it was taken down.

Apple has surpassed Nvidia to become the world's most valuable company by market capitalization. The shift reflects a change in investor sentiment, as Apple's more cautious approach to AI spending is now being viewed as a strategic advantage.

Instead of committing to building its own extensive AI infrastructure, Apple has largely opted to rent data center capacity. This strategy, once seen as a potential weakness, is now favored by some investors amid broader market concerns about the high cost and uncertain returns of AI development. TApple's shares have risen 25% year-to-date, compared to a 7% rise for the Nasdaq index.

Investors are awaiting the company's upcoming earnings call, which will be the last for outgoing CEO Tim Cook, for an update on Apple's progress in integrating AI features into its products.

Bernard Arnault, the head of luxury goods conglomerate LVMH, took to the social media platform X to directly counter a critical article published by the French newspaper Le Monde. In his first post on the platform, Arnault published an open letter refuting claims made in the newspaper's extensive report on his company and family.

The Le Monde article described the Arnault family as