Shares shifted sharply lower on June 23, with Nebius Group (NBIS) sliding 8% to $261.03 in pre-market trading, one day after officially joining the Nasdaq-100. The selloff raises a pointed question: was the recent surge driven by fundamentals or by a wave of forced buying that has now crested?
• The Index-Buying Wave Has Passed, and Gravity Is Returning. The Nasdaq-100 underpins more than 200 investment products managing upward of $800 billion globally, and all passive funds replicating the index had to acquire NBIS shares before the June 22 inclusion date.
Since the inclusion was announced on June 11, NBIS rallied 34%. Now that the mechanical buying is done, profit-takers are stepping in. Short interest has risen to a record 17.6% of shares outstanding , suggesting plenty of traders anticipated exactly this reversal.
• The Numbers Are Spectacular — But the Price Already Reflects Them. Q1 2026 revenue reached $399 million, a 684% year-over-year increase.
Nebius now holds a $19.4 billion Microsoft deal alongside the $27 billion Meta contract and a $2 billion capital injection from Nvidia. Yet nine of 16 analysts rate NBIS a "Buy," while their average price target of $244.07 sits 15% below Monday's close of $283.61.
Morningstar estimates fair value at just $120. The stock has sprinted past virtually every published target.
• Revenue Visibility Is Real, but So Is the Cash Burn. Nebius posted 2025 revenue of $530 million but an operating loss of $596 million — a gap that widened 49% year over year.
The company raised its 2026 capital spending guidance to $20–$25 billion , a staggering bet that it can build data centers fast enough to fulfill contracts. Analysts project revenue climbing to $21.3 billion by 2028 and a swing to earnings of $5.16 per share , but any construction delay or financing hiccup could punish a stock trading at triple-digit price-to-earnings ratios.
• Insiders Are Selling Into the Strength. Company insiders have offloaded $131 million in shares over the past three months, with zero insider purchases recorded. That contrast — executives cashing out while retail and index money pours in — deserves close attention.
Bottom line: Today's pullback looks like textbook consolidation after a catalyst-driven spike. The contracted revenue from Meta and Microsoft gives Nebius a longer runway than most startups, but at current prices the stock is betting that a company still losing money will flawlessly execute one of the largest data-center buildouts in history.