Arm and Western Digital offer contrasting ways to invest in artificial-intelligence infrastructure. Arm licenses processor designs and earns fees when customers use its architecture in chips, while Western Digital operates as a storage-hardware company focused on hard-disk drives. The choice therefore turns on whether investors prefer Arm’s licensing economics and data-center expansion or Western Digital’s faster recent growth and lower valuation.
Free cash flow was approximately $1. 5 billion, although stock-based compensation represented about 69% of operating cash flow and affects how that figure should be interpreted. The company’s July balance sheet showed debt equal to about 0. 1 times equity and a current ratio near 5.
Arm’s opportunity is expanding beyond smartphones into cloud computing and artificial intelligence. The company says its architecture already runs in billions of devices and that its CPUs are used alongside accelerators in AI systems. Chief Executive Rene Haas said in July that the CPU market estimate had risen from about $100 billion earlier in the year toward figures as high as $200 billion as compute demand increasingly shifts toward inference and agentic workloads.
The company’s cloud business generated nearly 89% of revenue, and its 10 largest customers represented about 73%, creating substantial exposure to a limited group of buyers.
Western Digital appears cheaper on forward earnings and has benefited from strong AI-related storage demand, but storage products remain exposed to pricing swings. The company also relies on some single-source suppliers and must continue developing technologies such as heat-assisted magnetic recording. Arm faces different risks, including competition from the open-source RISC-V architecture, dependence on customers’ design choices and sensitivity to smartphone and consumer-electronics cycles. On balance, the supplied comparison favors Arm for long-term ownership because recurring licensing and royalty revenue offers a more consistent model, even though Western Digital’s faster growth and lower valuation may appeal to value-focused investors.