Cerebras priced its initial public offering at $185 per share on Wednesday, well above the $150 to $160 range it had set Monday, raising $5.55 billion in the largest tech listing of 2026. The wafer-scale AI-chip designer will trade on Nasdaq under the ticker CBRS starting Thursday, with a fully diluted valuation north of $56 billion. The 30-million-share offering closed multiple times oversubscribed.

Cerebras was last valued at $8 billion in an October 2024 round, meaning the IPO marks a roughly seven-fold mark-up in 18 months. The company specializes in inference chips, the systems that run AI models after they have been trained, which has become the most expensive and capacity-constrained leg of the AI buildout as enterprise deployments scale. Founded in 2016, Cerebras built its business around the wafer-scale-engine architecture: a single silicon wafer the size of a dinner plate functioning as one massive chip, designed for the parallel-processing demands of large language models. The IPO closes the public-market gap in pure-play AI infrastructure, where Nvidia's near-monopoly on training chips contrasted with the absence of a listed inference-specific name until tonight.

The offering raised $5.55 billion against an originally expected $4.8 billion. The OpenAI commitment is the structural anchor: a $20 billion contract for 750 megawatts of inference capacity covering 2026 through 2028, locking in Cerebras's revenue base for the next three years. Amazon Web Services serves as the second anchor customer; Cerebras-on-AWS is now a standard build pattern for enterprise inference workloads on the platform. The pricing pop above the raised range reflected demand from sovereign-AI funds, large tech allocators, and growth specialists rotating out of the hyperscaler trade and into pure-play picks. Lockup is 180 days for insiders.

The pricing comes on a day when broader markets pushed to record closes despite a 6 percent April PPI print, with the S&P 500 at 7,444.25 and the Nasdaq at 26,402.34. Nvidia closed up 1.7 percent at roughly $215. AMD and Intel have outperformed Nvidia year-to-date by margins of more than 100 percentage points each, as the chip rotation has favored the cheaper inference and foundry plays. Wall Street is positioning for Thursday's CPI print and Cerebras's open in the same morning session.

Cerebras at $56 billion sets the public-market reference price for AI inference. The next read-throughs are mechanical: any public AI-infrastructure name with credible inference exposure gets a higher comp. For Nvidia the pricing is mixed: strong demand for AI chips broadly is bullish for the sector multiple, but the $56 billion valuation for a competitor in inference specifically chips at the assumption that Nvidia monetizes the entire AI stack. The pipeline of AI IPOs expected over 2026-2027 (Anthropic, OpenAI, SpaceX, Databricks) just got a clean precedent for what investor demand looks like at scale. Lockup expiry in late November will be the next pressure point.

Inference is where the AI buildout actually generates revenue. Tonight is the first time the public market gets to price it directly.