Nebius Group is trading at $170.74, down -6.36%, amid concerns about AI infrastructure expansion after Microsoft’s capex came in below estimates. - Delayed third-party capacity deliveries raised concerns about the pace of AI infrastructure expansion; reporting says neocloud shares, including Nebius, fell after the news. - Disappointing Alphabet and ServiceNow results revived doubts about returns on AI spending, weighing on technology and software stocks. - No verified company-specific announcement explaining the decline was identified; volume information is unavailable.