Why Is Nebius Group Stock Surging On Thursday? - Nebius Group (NASDAQ:NBIS)
Nebius Group (NASDAQ:NBIS) rose 3.1% to $289.62 on Thursday, according to Benzinga Pro. The Amsterdam-based AI cloud firm confirmed it will join the Nasdaq-100 in Nasdaq’s quarterly reconstitution. Shares also gained after Nebius said it completed its Eigen AI acquisition on June 10. Short interest fell to 44.30M shares (20.73% of float) from 45.10M.

Index inclusion plus acquisition completion and declining short interest are reinforcing bullish momentum into the next trading days.
Nebius shares rose 3.10% as it joins the Nasdaq-100, completes the Eigen AI acquisition, and sees short interest fall.
Near-term upside bias while price holds above the 20-day SMA (~$233.76) and resistance near the 52-week high (~$297.93) is tested.
Background
The article frames Nebius’s Thursday strength around Nasdaq-100 reconstitution, the June 10 Eigen AI acquisition close, and a short-interest decline.
Why it matters
These factors collectively suggest incremental demand (index inclusion), improved strategic positioning (Eigen AI), and reduced downside pressure (lower short interest), supporting momentum traders while key resistance is tested.
Market relevance
NBIS is experiencing a catalyst stack (index inclusion + acquisition close + short-interest decline) alongside bullish technical positioning.
Market effects
Supports sentiment for AI infrastructure/cloud names via index-driven demand and deal-driven narrative strength.
Primarily US-market flow via Nasdaq-100 reconstitution; Amsterdam-headquartered issuer may see incremental US investor attention.
Limited beyond AI/cloud investor sentiment; no cross-border regulatory or macro shock described.
Alternative perspectives
Index inclusion and technical strength can already be priced; without new revenue/earnings details, the move may fade if the stock fails to clear the 52-week high.
Short-interest cover estimates rely on average daily volume; actual cover timing can change with liquidity/market-wide risk-off moves.
Key entities
- public_companyNebius Group
NASDAQ-listed AI cloud company joining the Nasdaq-100 and completing the Eigen AI acquisition.
- acquired_companyEigen AI
Inference and model optimization firm acquired by Nebius; closing completed June 10.

