On September 16, IBM fell 3.05% in regular trading, trading around $242.09 per share, with turnover of approximately $63.67 million. The decline comes as the global semiconductor and AI hardware selloff continues to ripple through technology-linked equities.

On the news front, the Philadelphia Semiconductor Index previously plunged nearly 6% in a single session, erasing over $500 billion in total market capitalization across the chip supply chain. The selloff was triggered by a rare industry-wide slowdown consensus, after Anthropic CEO Dario Amodei published an article calling for a deceleration in frontier AI model development, with OpenAI CEO Sam Altman and xAI founder Elon Musk publicly endorsing the stance. This marked the first time leading AI firms collectively signaled a willingness to moderate the pace of capability advancement, prompting a broad repricing of AI-related hardware demand expectations.

Adding to the pressure, IBM remains under a cloud from its earlier $68 billion single-day market cap wipeout linked to Z-series product performance falling short of expectations, which also prompted a regulatory investigation. Although IBM subsidiary Anderon finalized a $1 billion CHIPS Act award from the U.S. Department of Commerce to advance a domestic quantum foundry, the positive development failed to offset the prevailing systemic selling pressure.

(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.)