AI cloud shares retreat as Nvidia turmoil rattles the sector

AI-linked equities sold off again as turmoil around Nvidia spread across semiconductor and specialist cloud-computing stocks. Reuters reported the Philadelphia semiconductor index fell 5.1%, while CoreWeave and Nebius dropped 8.8% and 9% respectively; the Nasdaq-100 lost 2%.

The retreat reflected renewed concern about the debt, capital needs and customer concentration behind the rapid build-out of AI computing capacity. The market move does not by itself show weaker demand, but it raises the cost of financing expansion.