One is the prospect of greater memory chip supply from Chinese heavyweights such as CXMT, which listed on Monday. Capital Economics noted that news of China producing its own deep ultraviolet lithography machines has hit ASML shares, even though the Dutch firm's extreme ultraviolet machines are far more advanced. The firm added that reports Nvidia may provide about $250 billion in financing guarantees for OpenAI have revived concerns about "circular finance" in the AI rollout. Capital Economics still expects the "AI train" to get back on track, with an end-2026 S&P 500 forecast of 8,250. Related articlesIs the AI rally running out of steam?