Financial links between the United States and China remain substantial despite intensifying competition over artificial intelligence, semiconductors and data-center infrastructure. Wall Street banks underwrote 19 Chinese advanced-technology equity transactions worth $17.2 billion this year, while Chinese and Hong Kong investors participated in $8.9 billion of U.S. AI fundraising through mid-September, up from $436 million in 2023. President Donald Trump and Chinese President Xi Jinping are likely to discuss AI safety at their meeting on the 24th, while U.S. and Chinese officials have floated a dialogue on national security-related AI incidents. Export controls on advanced Nvidia chips and claims of AI distillation remain significant obstacles. U.S. holdings by Hong Kong and mainland Chinese residents rose 23% over the past year to more than $750 billion, underscoring continuing cross-border exposure despite technology restrictions and investment controls.