The China-US trade negotiations in London may release positive signals in the short term, but substantive breakthroughs are limited. Trump's optimistic statements may inject short-term confidence into the market, but the differences between the two sides on core issues such as technology controls and tariffs are difficult to resolve. If the negotiations achieve some results (such as minor tariff reductions), it may boost global stock markets, especially in the technology and new energy sectors; if they become stalled, it will exacerbate market volatility.