SoftBank’s Strategic Pivot Gains Momentum with ARM’s Chip Venture

Shares in SoftBank Group Corp. surged significantly this week, propelled by a major strategic announcement from its key semiconductor holding. ARM Holdings, in which SoftBank maintains an 87% controlling stake, revealed plans to begin selling its own data center processors designed for artificial intelligence workloads, moving beyond its traditional licensing model.

A New Revenue Stream for a Core Asset

ARM’s primary business has historically been the licensing of its chip architecture designs to other manufacturers. The company is now taking a decisive step into direct product sales, developing proprietary central processing units (CPUs) engineered specifically for the demands of AI data centers. This initiative has already secured notable partners and customers. Meta Platforms is involved as a lead partner and co-developer, with confirmed clients including OpenAI, Cloudflare, and SAP.

The newly developed chips aim to accelerate computational tasks while simultaneously reducing the capital expenditure required for AI infrastructure. This shift is driven by the rapidly growing need for powerful processors capable of handling coordination, reasoning, and data transfer as AI agents become more pervasive.

The market’s reaction was immediate and positive. SoftBank’s stock price climbed 7.5% on Wednesday, closing at 3,795 yen following the news.

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Integrating into a Broader AI Vision

ARM’s foray into chip manufacturing aligns with SoftBank’s larger, capital-intensive ambitions in artificial intelligence. The Japanese conglomerate is aggressively building out its own AI infrastructure. A landmark groundbreaking ceremony for a massive AI data center in Ohio, USA, was held on March 20, 2026. The total project envisions an investment of up to $500 billion, with the initial construction phase estimated to cost between $30 and $40 billion and targeted for completion by early 2028.

In a parallel move to bolster its technological foundation, SoftBank Corp. entered into a multi-year framework agreement with Ericsson on March 26. This partnership focuses on transitioning its core network in Japan to cloud-native 5G Core solutions.

For ARM, the direct entry into the chip business represents a potential new revenue stream distinct from licensing fees. The scalability of this model will face a key test when the first batches of chips enter full-scale production deployment at partners like Meta and OpenAI. As one of the most valuable assets in SoftBank’s portfolio, ARM’s successful execution of this strategy is crucial for the parent company’s future growth trajectory.