AI Hardware Stocks Rose on Market Open
Memory providers and fiber suppliers gained value following a multiyear supply agreement between Corning and AT&T.
Updated on Sept. 29, 2026 in Semiconductors
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AI hardware and memory stocks increased at the U.S. market open on September 29, 2026. This activity followed the announcement of a multiyear fiber-supply agreement between Corning and AT&T.
Why it matters
The deal between Corning and AT&T signals continued infrastructure investment in the communications hardware necessary to support AI-driven data demands. This partnership underscores the dependency of high-speed computation on robust network capacity.
Corning and AT&T executed a multiyear fiber-supply contract valued at over $3 billion. Market performance saw Micron Technology rise 2%, Western Digital increase 2.2%, SanDisk climb 1.8%, and SK hynix gain 1.7%.
The players
Corning
A developer of specialized glass, ceramics, and optical fiber used in high-speed network infrastructure.
AT&T
A telecommunications provider that manages a global network requiring vast quantities of fiber-optic cabling.
Micron Technology
A manufacturer of volatile and non-volatile semiconductor memory for data centers and consumer devices.
Western Digital
A data storage company producing flash-based and mechanical drives for enterprise-grade AI hardware.
SK hynix
A semiconductor supplier specializing in high-bandwidth memory crucial for AI training and inference.
The details
Corning, a manufacturer of specialty glass and optical communications components, signed a multiyear agreement to provide fiber optic cables—the strands of glass that transmit data via light pulses—to AT&T. This contract enables the scaling of network infrastructure required to handle the high-bandwidth requirements of AI hardware. The market shift reflects investor sentiment regarding the hardware ecosystem supporting modern data-intensive compute architectures.
Timeline
September 29, 2026: AI hardware and memory stocks rose at the U.S. market open.
9:36 a.m. ET: Micron Technology shares recorded a 2 percent increase.
The Tech Race
This agreement extends the ongoing build-out of high-capacity optical fiber network infrastructure across the United States. It follows a pattern of critical infrastructure investments meant to bridge the capacity gap between current network throughput and the demands of AI hardware.
The partnership aims to secure the physical supply chain necessary for expanding telecommunications bandwidth in the coming years. While this benefits enterprise-scale data infrastructure immediately, consumer-level impacts on network reliability or speed depend on long-term deployment.
The takeaway
The move suggests a broad industry anticipation of increased bandwidth needs as memory and hardware suppliers align with network providers. Watch for subsequent infrastructure reports to confirm whether this $3 billion contract accelerates national fiber deployment timelines.
Further reading
For more on the industry trends shaping compute power, visit Semiconductors.
Source note: This article includes information reported by TokenPost.
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