TLDR
- Nebius Group raises $4B via convertible notes for AI and data centers.
- 2031 & 2033 notes offer premiums of 89% and 86% over share price.
- Proceeds will fund GPUs, servers, and high-capacity AI infrastructure.
- Notes allow conversion to cash, shares, or combination at maturity.
- Stock jumps as investors reward Nebius’ strategic AI expansion plan.
Nebius Group N.V. (NBIS) shares rose sharply to $118.56, gaining $2.23, up 1.92%, before settling lower in after-hours trading. The company priced a $4.0 billion offering of convertible senior notes, exceeding prior estimates. The move aims to fund AI infrastructure expansion and data center development efficiently.
$4 Billion Convertible Notes Offering Details
Nebius Group issued $2.25 billion in 1.250% convertible notes due 2031 and $1.75 billion in 2.625% notes due 2033. The offering was privately placed with qualified institutional buyers under Rule 144A. The sale includes an overallotment option for an additional $600 million in aggregate principal, exercisable within 13 days.
The company expects net proceeds of approximately $3.96 billion, or $4.55 billion if the overallotment option is exercised. Funds will support new data centers, AI cloud development, and procurement of critical components, including GPUs. Expansion plans include scaling the data center footprint to strengthen AI infrastructure operations.
The Notes will be senior, unsecured obligations paying interest semi-annually starting September 15, 2026. The 2031 Notes offer an initial conversion price of $183.22 per Class A share. The 2033 Notes carry an initial conversion price of $180.31 per Class A share, reflecting premiums above the last share price.
Conversion Features and Maturity Terms
The 2031 Notes convert at 5.4579 shares per $1,000 principal, while the 2033 Notes convert at 5.5460 shares per $1,000 principal. Conversion rates will adjust for corporate events, including make-whole fundamental changes. Effective conversion prices at maturity imply premiums of 89% for 2031 Notes and 86% for 2033 Notes.
The Notes mature on March 15, 2031, and March 15, 2033, unless repurchased or converted earlier. Redemption is restricted until 2029 for 2031 Notes and 2030 for 2033 Notes, with exceptions for tax-related events. Holders may convert Notes at any time within two months prior to maturity or upon satisfaction of specified conditions.
The company will settle conversions in cash, Class A shares, or a combination, following applicable Dutch tax rules. Notes may be repurchased for cash upon a fundamental corporate change at the Accreted Principal Amount. Accreted Principal Amount calculations ensure payments reach 120% of the original principal at maturity.
Strategic Impact on AI Expansion
Nebius Group plans to allocate proceeds to accelerate AI cloud platform development. Funds will also cover construction and build-out of high-capacity data centers. The investment strategy strengthens AI infrastructure to meet growing computational demand.
The capital infusion enables the company to procure critical hardware efficiently, including GPUs and servers. Expansion of the data center footprint positions the company for global AI service delivery. The Notes offering directly supports operational scale and technology enhancement initiatives.
The $4 billion convertible notes issuance highlights Nebius Group’s strategy to combine financing and strategic expansion. Stock gains reflect market recognition of the company’s infrastructure and AI growth focus. The move underlines confidence in long-term capacity and revenue generation potential.


