Nebius plans $4.5 billion convertible bond sale to fund AI data centers

Nebius Group NV, a cloud computing company focused on artificial intelligence, announced plans to issue $4.5 billion in convertible bonds. The proceeds will be used to build data centers and develop its AI platform, following increased demand for computing infrastructure from major technology companies. The announcement was first reported by Bloomberg Technology on Wednesday, August 19, 2026. According to the report, Nebius is tapping the convertible bond market to raise substantial capital, a move that reflects the capital intensive nature of the AI infrastructure industry. Convertible bonds are debt instruments that can be converted into company stock at a predetermined price in the future.

For investors, they offer potential upside from stock price appreciation, while for the company, they provide a way to secure funding at lower interest rates than traditional bonds. Nebius is a relatively new company formed from the remnants of Yandex, the Russian tech giant that underwent a major restructuring following Russia's invasion of Ukraine. The company now operates as an independent entity focused on cloud computing services for AI workloads, including training large language models and inference. Nebius's decision to issue billions of dollars in convertible bonds underscores the scale of investment required to compete in the AI infrastructure market.

Companies such as Microsoft, Amazon, and Google have invested tens of billions of dollars to build AI computing capacity, and independent players like Nebius must keep pace to remain relevant. Demand for AI computing capacity has surged since the launch of ChatGPT in late 2022. Companies across various sectors are racing to adopt generative AI technologies, which require far more computing power than traditional software applications. Data centers specifically designed for AI workloads have become highly sought after assets. Nebius operates data centers in Finland and plans to expand its capacity in Europe and North America. The company is also developing a software platform that enables developers to train and run AI models efficiently on their infrastructure.

This convertible bond issuance is one of the largest in the technology sector in 2026. The $4.5 billion size reflects Nebius management's confidence in their business growth prospects, as well as investor appetite for companies operating in the AI sector. From a market perspective, Nebius's move comes at a time when major technology companies are increasing capital expenditures for AI infrastructure. Meta Platforms, Microsoft, and Alphabet have each announced significant capital spending plans for 2026, with a large portion allocated to AI data centers. Industry analysts note that the AI infrastructure market is still in its early growth phase. Despite concerns about a potential AI bubble, actual demand from companies implementing AI technologies continues to rise.

This creates opportunities for independent infrastructure providers like Nebius to fill gaps that large cloud providers cannot address. Nebius has shown strong revenue growth since its relaunch. The company reported triple digit revenue growth in recent quarters, driven by adoption of its AI platform by technology companies and startups. The terms of the convertible bond issuance have not been announced in detail, including interest rate, conversion price, and maturity. Such information is typically disclosed in a formal prospectus issued after the initial announcement. Nebius's choice to use convertible bonds rather than common equity is notable because it indicates a preference to avoid immediate share dilution.

With convertible bonds, the company can defer dilution until the bonds are actually converted into shares, which typically occurs if the stock price rises above the conversion price. For investors, convertible bonds offer downside protection through fixed interest payments, while also providing upside potential if the company's stock price increases. This makes them an attractive instrument in a high volatility sector like AI. Nebius is also building a software platform designed to optimize the use of GPUs, graphics processing units that are key components in training AI models. The platform allows developers to manage AI workloads more efficiently, reduce computing costs, and accelerate development time.

The company faces intense competition from major cloud providers such as AWS, Microsoft Azure, and Google Cloud, which also offer AI computing services. However, Nebius differentiates itself by focusing specifically on AI workloads and architectures optimized for those needs. Going forward, the success of this bond issuance will depend on market conditions and investor interest in the AI sector. If the issuance is successful, Nebius will have sufficient capital to accelerate data center construction and expand its AI platform, strengthening its position in the rapidly growing AI infrastructure market.