Nebius Group (NBIS) shares surged 5.46% over the 24-hour period, driven by strong intraday and post-market buying as multiple bullish catalysts converged for the AI cloud infrastructure provider.

The rally was fueled by sustained capital inflows into the Neocloud sector, with Nebius at the center of investor enthusiasm. Key tailwinds included NVIDIA’s disclosed 9.3% passive stake totaling approximately 22.26 million shares, and Baird’s initiation of coverage with an Outperform rating alongside a consensus analyst target price of $270.80. Additionally, the company’s 2025 Sustainability Report highlighted an average data center PUE of 1.25, well below the global industry average, reinforcing confidence in operational efficiency as it scales AI cloud capacity.

The broader Systems Software and AI infrastructure sector also showed strength, with peers like CoreWeave and IREN posting significant gains, further underpinning the positive sentiment for Nebius and its strategic positioning in the cloud computing landscape.