Akamai’s stock had its best day in 22 years. It took one AI contract.

Akamai Technologies disclosed a 1.8 billion dollar, seven-year cloud infrastructure deal with a customer it described only as “a leading frontier model provider.” Bloomberg identified the customer as Anthropic. The stock rose 27 per cent in a single day, the largest rally in the company’s 28-year history. A company that built its business delivering web pages faster than anyone else just became an AI infrastructure provider on the strength of one contract.

The deal is the centrepiece of a quarter in which Akamai’s cloud infrastructure services revenue grew 40 per cent year over year to 95 million dollars, while its legacy content delivery business declined 7 per cent. The company is being repriced by investors not for what it has been for two decades but for what one contract suggests it could become. The question is whether a single customer commitment, however large, constitutes a transformation or a concentration risk.

The deal

The 1.8 billion dollar contract is the largest in Akamai’s history. Revenue from the commitment is expected to begin in the fourth quarter of 2026, contributing approximately 20 to 25 million dollars in that period. The seven-year term provides visibility that Akamai’s legacy CDN business, which operates on shorter cycles and faces persistent price compression, has never offered.

The deal follows a 200 million dollar, four-year cloud services agreement that Akamai signed in February with another unnamed US technology company, under which the customer will use a multi-thousand NVIDIA Blackwell GPU cluster. Together, the two contracts represent two billion dollars in committed cloud revenue from customers that Akamai did not have two years ago.

Anthropic signed to take all of SpaceX’s Colossus 1 data centre capacity, adding more than 300 megawatts and over 220,000 NVIDIA GPUs to its compute footprint. The Akamai deal extends the same logic: Anthropic is buying compute capacity from every available provider as demand for Claude outpaces supply. Dario Amodei, Anthropic’s chief executive, said the company experienced “80x growth” in annualised revenue and usage in the first quarter of 2026 and is “working as quickly as possible” to secure more computing resources.

The pivot

Akamai was founded in 1998 at MIT to solve the problem of delivering web content without congestion. For two decades, it operated the world’s largest content delivery network, caching and distributing web pages, video streams, and software downloads across more than 4,000 locations in 130 countries. The CDN business made Akamai indispensable to the internet. It also became a commodity.

Under chief executive Tom Leighton, who moved from chief scientist to the top role in 2013, the company spent a decade diversifying. The first pivot was into cybersecurity, which now accounts for 55 per cent of revenue at 590 million dollars per quarter, growing 11 per cent year over year. The second pivot, into cloud computing, began with the 900 million dollar acquisition of Linode in 2022 and is now producing the growth that investors had been waiting to see.

Leighton told CNBC that the deal represents validation of the company’s “different approach” and that Akamai has “a very strong pipeline of major enterprise customers, including some that have very large cloud needs.” The company announced at NVIDIA’s GTC event in March that it would deploy thousands of NVIDIA RTX PRO 6000 GPUs and build what it described as the “industry’s first global-scale implementation of NVIDIA’s AI Grid,” pushing AI inference closer to end users to reduce latency and cost.

The customer

Anthropic’s decision to sign a 1.8 billion dollar contract with Akamai reflects the constraint that defines the current AI infrastructure market: demand for compute exceeds the capacity of any single provider. Anthropic already runs Claude across Google tensor processing units, Amazon’s custom chips, and NVIDIA hardware. It has signed with SpaceX for data centre capacity. It is exploring building its own chips.

Anthropic is exploring building its own AI chips as its run-rate revenue surpasses 30 billion dollars, but custom silicon takes years to design and validate. In the interim, Anthropic is buying capacity wherever it can find it. Akamai’s distributed network of edge locations, originally built for CDN traffic, offers something that centralised hyperscale data centres do not: the ability to run inference workloads close to end users, which reduces latency for the real-time applications that enterprises are beginning to deploy.

Nebius acquired Eigen AI for 643 million dollars to optimise inference performance, a bet that the most valuable layer in AI infrastructure is not raw compute but the efficiency with which that compute is used. Akamai’s pitch to Anthropic rests on a similar premise: that distributed inference at the edge is more efficient for certain workloads than centralised processing in a hyperscale facility.

The numbers

Akamai reported first-quarter revenue of 1.074 billion dollars, up 6 per cent year over year. Adjusted earnings per share were 1.61 dollars. Cloud infrastructure services revenue was 95 million dollars, up 40 per cent. Security revenue was 590 million dollars, up 11 per cent. Delivery and other revenue was 389 million dollars, down 7 per cent.

The cloud segment represents less than 9 per cent of total revenue. The 1.8 billion dollar deal, at approximately 257 million dollars per year, would more than double the segment’s current annual run rate. The contract transforms cloud from a promising but small division into the company’s primary growth engine, at least on a committed-revenue basis.

For the full year, Akamai is forecasting revenue of 4.45 to 4.55 billion dollars and adjusted earnings of 6.40 to 7.15 dollars per share. The guidance does not yet reflect the full impact of the Anthropic contract, which begins contributing in the fourth quarter. Analysts will spend the next two quarters trying to determine whether the deal is a one-off or the first in a series.

The risk

Anthropic launched a marketplace for Claude-powered enterprise software, and committed 100 million dollars to the Claude Partner Network, signalling that the company’s commercial ambitions extend well beyond model development into the infrastructure and services layers that support enterprise AI deployment. The scale of Anthropic’s expansion explains the compute hunger that produced the Akamai deal.

But a 1.8 billion dollar contract with one customer concentrates risk as much as it concentrates revenue. Anthropic’s annualised revenue has grown from approximately 900 million dollars in late 2025 to a reported 30 billion dollar run rate. Growth at that pace creates demand for infrastructure. It also creates the conditions for a correction if the demand curve flattens. Akamai’s stock gained 27 per cent on the announcement. The company’s ability to sustain that valuation depends on whether Anthropic’s growth trajectory holds for seven years.

Leighton said there is more coming. The company’s history suggests patience. Akamai survived the dot-com crash, navigated the commoditisation of its original business, and spent a decade building a cybersecurity franchise before the market rewarded it. The AI cloud deal is the latest reinvention of a company that has been reinventing itself since 1998. The difference is that this time, the reinvention depends on one customer’s continued appetite for compute, and on the assumption that the demand for AI inference at the edge will grow as fast as the demand for AI itself.