US-China Summit 2026

The Trump-Xi state dinner produced pandas and pleasantries but zero signed agreements on tariffs, chips or Taiwan, and the stalemate itself was the signal: neither side wanted a fight, but neither was willing to give anything up. Markets read the cordiality as a mild positive for risk assets (stocks and other investments people buy when they feel confident), but the underlying rivalry over semiconductors and AI governance stayed exactly where it was.

Three days after the summit ended in pageantry, Washington and Beijing published a specific list of goods recommended for cuts covering $60bn of bilateral trade, plus a formal channel to discuss AI safety, the first such mechanism since 2022. A published list is more than a handshake, but analysts were right to flag the gap between a recommendation and an actual cut: every round of implementation talks is another chance for the deal to stall.

While diplomats talked, markets delivered their own verdict: China's main technology index fell 40% from its June peak, South Korea's Kospi dropped 6.25% in a single session, and a Broadcom executive compared AI investors to casino gamblers. The sell-off exposed a real structural problem: China's AI export boom, which had propped up its Q3 GDP growth, depends on chips that US export controls are steadily restricting, and investors had started to price in the possibility that the strategy hits a wall.

Jensen Huang's resignation, after an affair with a woman linked to China's Ministry of State Security, turned a corporate story into a national-security one in the week before the next Trump-Xi meeting. Nvidia supplies the chips that power almost every serious AI system on the planet, so the leadership vacuum repriced the company instantly and handed Washington hardliners the clearest possible argument for tightening export controls (the rules that restrict what technology can be sold abroad) on AI hardware, which would cut directly into Nvidia's revenue and slow the $60bn tariff deal's momentum.