AMD Stock Falls 5.7% Despite 2.5-GW Data-Center Deal

AMD shares fell approximately 5.7% in Wednesday regular-session trading as a broad selloff gripped semiconductor stocks. The Philadelphia Semiconductor Index declined 1.6% during early trading, reflecting investor concerns about AI-chip returns in the wake of disappointing market reactions to strong industry earnings, according to Reuters reporting cited in the announcement.

Despite the stock decline, AMD and Core Scientific, a U.S. data-center infrastructure operator, unveiled a major partnership designed to expand AI infrastructure deployment. Under the agreement, AMD will secure more than 500 megawatts of U.S. capacity for customer deployments beginning in 2027, with the potential to expand the arrangement to 2.5 gigawatts. The companies plan to collaborate on infrastructure design and deployment of AMD Instinct GPUs, EPYC processors, and ROCm software, configuring sites around AMD's technology stack.

The initial commitment comprises 15-year agreements covering approximately 530 megawatts across five sites and could provide Core Scientific with more than $14 billion（約2.2兆円） in base contracted revenue. Expanding from 530 megawatts to 2.5 gigawatts would increase the potential capacity by nearly five times, although the larger amount is not guaranteed. The structure gives AMD a documented route for expanding deployments without committing customers to immediate maximum-capacity use.

Investors appear to be weighing the long-term opportunity against near-term market concerns. The multi-year timeline—with meaningful deployments not beginning until 2027—and the optionality embedded in the expansion clause may have reinforced doubt about whether infrastructure commitments will translate into processor revenue quickly enough to address current questions about AI capital spending expectations and semiconductor sector returns.

AMD's stock decline reflects a broader disconnect between infrastructure investment announcements and immediate market confidence in AI chip demand. The Philadelphia Semiconductor Index dropped 1.6% during early trading on Wednesday, signaling sector-wide pressure as investors reassessed AI returns following industry earnings reports. The Core Scientific partnership—which locks in deployment of AMD Instinct GPUs, EPYC processors, and ROCm software across multiple sites—represents a concrete long-term customer commitment, yet the market's focus appears fixed on near-term capital spending and whether such commitments will actually materialize into processor orders when deployments begin in 2027.

The deal's structure both strengthens and complicates AMD's position. Initial agreements cover 530 megawatts with the option to expand nearly five times to 2.5 gigawatts, which provides flexibility and documented customer intent without locking AMD into immediate maximum-capacity guarantees. The potential $14 billion（約2.2兆円） in base contracted revenue to Core Scientific suggests substantial downstream value for AMD if deployments proceed. However, the multi-year runway and optionality—the fact that expansion is "not guaranteed"—appear to have been interpreted by investors as uncertainty rather than prudent risk management, especially amid the sector's current skepticism about AI capital efficiency.