Major U.S. indices closed Wednesday in negative territory as specific technology stocks experienced significant volatility driven by artificial intelligence developments. The Dow Jones Industrial Average edged down 0.03% to 52,305.24, the S&P 500 lost 0.22% to 7,483.23, and the Nasdaq fell 0.66% to 26,040.03.

Meta Platforms and Reddit surge

Meta Platforms, Inc. (NASDAQ: META) saw its stock rise by 8.81%, closing at $612.91. The increase is attributed to the Mark Zuckerberg-led company’s strategic pivot towards AI infrastructure, a move expected to create a “butterfly effect” in the sector. Benzinga Edge Stock Rankings indicate Meta stock has a Momentum score in the 11th percentile and a Value score in the 53rd percentile.

Reddit, Inc. (NASDAQ: RDDT) surged by 13.93%, closing at $197.76. The increase follows reports of significant growth in daily active users, with a 17% year-over-year rise. The company’s CFO emphasized the focus on enhancing user engagement and expanding reach.

Micron Technology declines on supply outlook

Micron Technology, Inc. (NASDAQ: MU) fell by 10.57%, closing at $1,032.28. Micron CEO Sanjay Mehrotra said AI-driven memory demand had exceeded customer expectations and that industry supply was likely to remain constrained beyond 2027. He added that Micron had secured long-term customer agreements across multiple end markets. The company invested about $10 billion in memory technology and supply during 2023 and is committing approximately $200 billion globally to expand manufacturing capacity.

Nebius and CoreWeave drop on competition concerns

Nebius Group (NASDAQ: NBIS) dropped 17.01%, ending the day at $229.18. The decline was triggered by concerns over increased competition in the cloud sector, particularly from Meta’s potential entry into the market. CoreWeave (NASDAQ: CRWV) fell sharply by 13.92%, closing at $85.69. The decline was linked to reports of Meta’s potential new AI cloud business, which could directly impact CoreWeave’s market position as a provider of high-performance GPU cloud capacity.

Stock Performance Summary

Micron Technology and General Motors announced a Strategic Customer Agreement (SCA) to secure a long-term, reliable supply of memory and storage platforms critical to GM’s vehicle production and delivery at scale. The agreement aims to strengthen semiconductor and automotive supply chains while supporting the next generation of U.S. manufacturing and innovation. This partnership addresses the industry's need for consistent component supply over extended lifecycles, ensuring predictability and continuity for automakers and consumers.

Under the agreement, GM will secure supply of LPDRAM, NOR, and UFS NAND products. The collaboration extends beyond committed supply to include deep technology collaboration on future memory and storage requirements. This involves aligning on future product definition, system-level optimization, and the qualification of advanced memory technologies to support GM’s next generation of vehicle architectures and roadmaps.

The agreement is enabled by Micron’s ongoing investments to expand and localize supply for automotive customers. A key enabler is Micron’s $2 billion investment to modernize its Manassas, Virginia fab, which began production earlier this year. This facility provides the longevity and supply output valuable to long product lifecycles, improved supply predictability, and product continuity across the industry.

Enhanced customer experiences through local compute, AI-enabled in-cabin experiences, and advanced driver assistance (ADAS) autonomy are driving the importance of advanced memory and storage. As vehicles become increasingly software-defined and AI-driven, memory and storage performance, reliability, and scalability are essential to enabling next-generation capabilities.

Key Supply Components

Sanjay Mehrotra, Chairman, President and CEO of Micron Technology, emphasized the importance of the agreement for the automotive industry. "We are proud to expand our strategic relationship with General Motors to deliver both long-term supply assurance and technology innovation," said Mehrotra. "Our expanding manufacturing efforts in the United States are designed to enable GM to deliver both near-term products as well as secure U.S.-based supply to support next generation platforms and innovation."

Mary Barra, Chair and CEO of General Motors, highlighted the supply chain benefits. "Delivering next-generation vehicles at scale requires a resilient and closely aligned supply chain," said Barra. "Our expanded collaboration with Micron strengthens our access to critical memory technologies while enabling deeper integration across our vehicle platforms, supporting both performance and long-term reliability."

This SCA is one of the 16 agreements discussed on Micron’s fiscal third-quarter 2026 financial conference call. The agreement aligns with Micron’s broader approach to strengthening supply continuity across the global semiconductor ecosystem by aligning long-term demand with committed capacity and engineering collaboration.