NBIS stock fell 7.8% after announcing a scalable AI data center partnership model. Nebius introduced the approach to meet rising AI computing demand supported by solid second-quarter results. Nvidia-backed Nebius made the model public earlier this week. Bloom Energy secured a $1.7 billion deal for fuel cells at Nebius infrastructure sites. Trading volumes surged on the announcement. A 2X leveraged NBIS ETF launched the same day.