Kalray's stock market story can be summed up in four numbers: 22 EUR at its IPO in 2018. 52.40 EUR one evening in January 2021. Then 0.402 EUR in spring 2025. And 5.30 EUR during the day on February 26, 2026. These dizzying swings tell, in turn, the story of enthusiasm, a cold shower, and then the return of hope for the company based in the French "Silicon Valley," not far from other listed companies born from the Isère scientific microcosm: STMicroelectronics, Soitec, or Memscap.

Long on the brink of financial asphyxiation, Kalray underwent a transformation in 2025 as radical as it was lifesaving. By refocusing its activity on its core business and adopting a model based on intellectual property licensing, the group began to reverse a downward trajectory that many considered inexorable. The stock emerged from "survival mode" less than a year ago and has since posted spectacular performances, including a fourfold increase since the start of the year.

Who is Kalray?

Founded in 2008 by researchers from the CEA (French Alternative Energies and Atomic Energy Commission), Kalray is one of the few European companies to specialize in a new generation of processors, the DPUs ( Data Processing Units ), designed to process and route massive data flows in data centers and artificial intelligence infrastructures. The image is simple: in these digital hives, thousands of servers continuously exchange colossal amounts of data. It needs to be sorted, routed, compressed, encrypted, in real time, without error. For a long time, these tasks were handled by conventional CPUs, the general-purpose processors found in our computers. But with exploding volumes, and especially with AI, these CPUs are now saturated by network management, to the detriment of computation.

Over more than ten years of R&D, Kalray has developed a unique processor technology, the MPPA ( Massively Parallel Processor Array ), protected by several patent families. Its most advanced processor, the Coolidge 2, is capable of handling hundreds of data streams simultaneously with very low energy consumption, a decisive feature at a time when the electricity bill for data centers is becoming a strategic issue. An appealing promise that attracted investors, especially since the project drew high-profile shareholders, including industrials NXP Semiconductor and Safran, as well as institutional investors from the CEA and Bpifrance.

But on the financial side, the picture was much less flattering. 118.5 million EUR in cash burned between 2018 and 2024, and revenue that peaked at 24.8 million EUR in 2024. The forecast presented at the 2018 IPO promised operational breakeven in 2020 and 100 million EUR in revenue by 2022! Covid certainly played a role, but faced with American and Asian giants, Kalray neither had the scale nor the financial strength to impose itself on the mass semiconductor market.

A Lifesaving Purge

At the start of 2025, under pressure, management made a bold cut by selling the Data Acceleration Platform branch to American company DataCore Software. A painful amputation on the surface, but one that freed up teams to focus on what gives the group its value: its DPUs and its intellectual property.

Kalray now presents itself as the only European player in this segment, a niche gaining importance with the rise of AI gigafactories , next-generation telecoms, space, and defense.

The operational turning point came with a contract signed in spring 2025 with OpenChip, a Spanish company specializing in next-generation chip design for artificial intelligence and high-performance computing. The industrial agreement is based on two parts: a non-exclusive license on part of Kalray's intellectual property for 4 million EUR, and a service contract worth about 10 million EUR. In practice, around fifty Grenoble engineers are temporarily seconded to OpenChip until summer 2026 to support them in developing their products. It's a model reminiscent, in some ways, of a company like ARM, which sells technology licenses and engineering services rather than physical products. The numbers speak for themselves: Kalray's gross margin jumped from 54% to 87% in the first half of 2025.

Beyond the amount, the partnership with OpenChip anchors Kalray at the heart of European technological sovereignty. Faced with American hegemony in AI, having a high-performance computing alternative made in Europe is becoming a major strategic lever to secure the continent's critical infrastructures.

But caution: the OpenChip pivot is also a capital story, which partly explains the speculative premium surrounding the stock. The Spanish group holds options to increase its stake in Kalray, or even take control by July 31. It's hard to know their intentions, especially since the share price has soared. But OpenChip has warrants exercisable at 0.69 EUR to reach about 20% of Kalray, then a mechanism through a capital increase to reach 51% based on the average share price of the three sessions preceding the new share issue. Suspense remains, from this perspective.

A Profit and Loss Statement on the Road to Resurrection

Speculation is also fueled by results published in January 2026, which validated the relevance of the refocus. Kalray posted consolidated revenue of 16.5 million euros for 2025, compared to 24.8 million a year earlier. The apparent drop is explained by the sale of the Data Acceleration Platform branch in February 2025. On the new scope focused on semiconductors, revenue quadrupled, from 3.6 to 14.3 million EUR, driven mainly by the OpenChip partnership. EBITDA, expected to be strongly positive for the year (where the company's previous best was -1.07 million EUR in 2023), is finally moving in the right direction for the first time in the company's history. Cash stood at 2.9 million euros at the end of December, and Kalray now estimates its funding horizon extends beyond June 30, 2026. The dilutive financing line contracted with IRIS in 2024, which weighed on the capital, was stopped before its term (6 million EUR drawn out of a possible 10 million), illustrating renewed confidence.

After the rally (which suffered a setback on February 26 with the stock down more than 10%), two questions dominate. First, can Kalray's new model sustainably stabilize the company's economic model, with or without OpenChip? Second, will OpenChip have an interest, in a few weeks, in taking control, and at what price? Kalray remains fragile and still falls into the category of special situations on the stock market: a listed company whose valuation still depends more on the story being told than on the fundamentals.