AI Infrastructure Stock Quietly Keeps Climbing

Nebius Group NV (NBIS) stock surged over 21% to a four-year high of $70.54, marking its best single-session gain, following a dramatic 625% year-over-year revenue beat in its second-quarter earnings report that significantly exceeded estimates. This strong performance prompted DA Davidson to raise its price target, while considerable short interest, accounting for 7.1% of NBIS's float, alongside exceptionally high call options volume, indicates potential for a short squeeze and robust bullish sentiment among traders targeting a $71 price level.

Analysis

Nebius Group NV (NBIS) is experiencing a significant re-rating driven by exceptional fundamental performance in the artificial intelligence infrastructure sector. The company reported a 625% year-over-year increase in second-quarter revenue, dramatically exceeding estimates and triggering its best-ever single-session stock gain of 21% to $66.80, after hitting a four-year high of $70.54. This performance, which has propelled the stock to a 141% gain in 2025, prompted a price target hike from DA Davidson to $65. Market dynamics suggest further potential upside, as short interest stands at a notable 7.1% of the available float, creating conditions for a short squeeze. This bullish outlook is reinforced by derivatives markets, where call option volume has surged to seven times the intraday average, with significant activity in the August $71 strike, indicating strong trader conviction for continued appreciation.

Key Decisions for Investors

• Given the explosive 625% revenue growth and subsequent record stock performance, investors could view this as strong validation of the company's AI infrastructure strategy and leadership position.
• Monitor the elevated short interest of 7.1% and the unusually high call volume, as these factors create the potential for a short squeeze that could drive further significant price appreciation and volatility in the near term.
• Despite the bullish signals, caution is warranted regarding new entry points after a 141% year-to-date rally; the stock is trading significantly above its 40-day moving average and DA Davidson's revised $65 price target, suggesting it may be technically overextended.