Nebius Stock: 50 Megawatts, a 12-Year Contract and the Analyst Upgrade That Reframed the Story

Nebius closed Friday at EUR 215.65, up 4.3%, as William Blair initiated coverage with an Outperform rating and the company secured 50 MW of US capacity.

Nebius shares closed Friday at EUR 215.65, up 4.3%, as investors rotated back into growth names ahead of the weekend. The tech-heavy Nasdaq added 0.95% over the same session, and Nebius rode that wave of renewed risk appetite. Market watchers pointed to no single catalyst behind the daily gain, but the broader picture has been sharpening for weeks.

The stock has now climbed 193% since the start of the year, a run that has turned a former growth promise into one of the more closely watched AI infrastructure plays in Europe.

William Blair Opens Coverage With Outperform

The week's most tangible boost came from William Blair, which initiated coverage of Nebius on Wednesday with an "Outperform" rating and no price target. The analysts cited the company's scaling infrastructure, established software capabilities, key customer relationships and reliable access to fresh capital as the pillars of their bullish case.

That assessment lands alongside other supportive calls. On September 24, BNP Paribas Exane upgraded the stock from "Neutral" to "Outperform" and lifted its price target from $260 to $399. Having multiple research houses reinforce their confidence has visibly strengthened institutional conviction in the business model.

A 50-Megawatt Commitment in the US Southeast

On the operational front, Nebius moved to deepen its physical footprint in North America. AIB Data Centers announced Wednesday a binding agreement to provide 50 megawatts of critical IT capacity for Nebius at a site in the southeastern United States. The contract runs for an initial term of twelve years. Financial terms were not disclosed.

The secured capacity is earmarked for both training and inference workloads, giving Nebius additional headroom for compute-intensive operations. The deal underscores a deliberate expansion strategy rather than a one-off capacity grab.

Inferize Acquisition Targets Inference Efficiency

Alongside the capacity build-out, Nebius has been tightening its software architecture. The company acquired inference specialist Inferize to bolster its in-house Nebius Token Factory platform. By fully integrating the technology and the accompanying developer team, Nebius aims to improve GPU utilization and scale inference processes more effectively. Neither party disclosed the financial terms of the purchase.

The move addresses a central challenge in the AI stack: running trained models efficiently in production, not just building them.

Insider Sale Draws Little Concern

A minor disclosure accompanied the week's news flow. Director John Wilson Boynton IV sold 50 Class A shares at $235.01 on Tuesday through a trading plan established on March 6, 2026, under Rule 10b5-1. Given the negligible volume, the transaction carries no relevance for the company's strategic direction.

Valuation Leaves Little Room for Error

With a 193% gain year-to-date, the stock has already priced in considerable optimism, and that dynamic cuts both ways. Disappointments in bringing new sites online, or unexpected cost increases, could cool the enthusiasm quickly. The elevated valuation demands flawless execution.

Even so, the strategic groundwork — long-term secured capacity, a deepening software stack and growing attention from major research houses — provides a solid foundation. Should Nebius deliver on its scaling plans as outlined, the current multiple may still understate the longer-term opportunity.