On September 14, SK hynix fell 7.13% in regular trading, trading at 176.07 USD/share, with turnover of $772 million. The stock had already declined over 5% in overnight and pre-market sessions before extending losses during regular hours.

The selloff was driven by a confluence of negative catalysts. Anthropic, OpenAI, and xAI — three leading AI companies — jointly called for slowing the pace of advanced AI model development, citing rising safety risks. Anthropic CEO Dario Amodei published a lengthy blog post outlining new safety measures and urging industry-wide support for broader deceleration. This triggered widespread concerns over the outlook for AI computing demand, sending semiconductor, memory, optical communication, and cloud computing stocks sharply lower across the board.

Compounding the pressure, SK hynix and Samsung Electronics rejected a 25 trillion won ($18.58 billion) advance payment proposal from state-run Korea Electric Power Corporation intended to fund power infrastructure for new semiconductor mega clusters. The companies cited uncertainty surrounding long-term semiconductor demand, reinforcing fears that the memory industry upcycle may be peaking.

Within the Semiconductors sector, declines were broad-based. Among major peers, Micron Technology fell 7.25%, Intel fell 7.18%, AMD fell 6.03%, NVIDIA fell 3.99%, and Broadcom fell 3.99%.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)