President Trump has reignited his trade offensive against China, accusing Beijing on social media of completely violating the tariff agreement reached with the U.S. U.S. Trade Representative Jamieson Greer also stated that China's actions are "completely unacceptable." These developments have cast a shadow over the outlook of trade negotiations. On the 30th, major U.S. stock indexes saw mostly losses, although the S&P 500 and Nasdaq indexes achieved their best monthly performance since November 2023.

Reports from outlets like CNBC indicate that Trump's comments regarding China's violations led to a poor performance in the stock market. Insiders revealed that the U.S. government plans to expand restrictions on the Chinese tech sector. Greer noted that the U.S. could extend Section 301 tariff actions if necessary, emphasizing that no significant changes have been observed in China's trade behavior, and that the pace at which China is withdrawing its trade retaliatory measures is still not fast enough.

Additionally, U.S. Treasury Secretary Scott Bessent mentioned in interviews that progress in U.S.-China trade talks appears to be stalled, potentially requiring direct involvement from Trump and Xi Jinping to reach a long-term agreement. At the market close on the 30th, the Dow Jones Industrial Average rose by 54.34 points to 42,270.07; the Nasdaq index fell by 62.11 points to 19,113.77; the S&P 500 index dipped by 0.48 points to 5,911.69; and the Philadelphia Semiconductor Index declined by 102.42 points to 4,758.06.

Despite this, investors remain hopeful about the preliminary agreements reached this month between the U.S. and countries like the UK and China, believing that these agreements could pave the way for negotiations with more countries. Overall, the S&P 500 rose by 6.2% this month, while the Nasdaq saw a gain of 9.6%, both achieving their best monthly performance since November 2023.