Shares surged another 8.2% to $251.50 in pre-market Monday, extending a five-session rally that has added nearly $34 per share since June 8. The catalyst: Nebius is set to join the Nasdaq-100 Index as part of the June 2026 rebalance , effective Monday, June 22 . That mechanical event, combined with easing geopolitical tensions and a broad tech bid, has turned NBIS into one of the hottest momentum trades on Wall Street. But the gap between price and analyst targets is widening fast — 16 analysts rate the stock a "Buy" with an average 12-month target of just $244.07 , already below today's price.
Index Funds Must Buy — And Everyone Is Front-Running Them. Index-tracking funds tied to the Nasdaq-100 are expected to adjust positions to include Nebius shares around June 22. The Nasdaq-100 is tied to more than 200 products with over $800 billion under management worldwide . That forced buying creates a short-term demand wave — but it's a one-time event. Traders piling in ahead of the rebalance are betting they can sell into that institutional flow.
The Growth Numbers Are Real — and Extraordinary. First-quarter 2026 revenue reached $399 million, a 684% increase year-over-year, and the stock has climbed over 160% since January , leading all five new index entrants. Adjusted EBITDA swung to a positive $129.5 million, compared to a loss of $53.7 million a year ago . The AI cloud business now accounts for 98% of total sales . Nebius is backed by Nvidia and holds a multiyear $17 billion revenue agreement with Microsoft , giving it a contracted revenue floor few peers can match.
The Build-Out Is Massive — And Capital-Hungry. The company recently announced a £1.7 billion investment to deploy Nvidia infrastructure in the UK and a 1.2 GW AI data center in Pennsylvania . Nebius holds about $3.68 billion in cash , but scaling gigawatt-class facilities will burn through that cushion, raising the question of whether future dilution or debt lies ahead.
Insiders Are Selling Into the Rally. Company insiders have offloaded $131 million worth of shares in the last three months, with zero insider purchases recorded . That's a red flag worth watching: the people closest to the business are locking in gains at precisely the moment public enthusiasm peaks. NBIS trades at a P/E ratio of 73x , rich even for a hypergrowth name. Separating the mechanical demand from index rebalancing from longer-term fundamental conviction will be central to assessing NBIS at current levels.