Stock Market Summary – October 10, 2025

The Dow Jones Industrial Average tumbled more than 500 points on President Donald Trump’s recent threat of increases in China tariffs. In response to heightened control measures by China on rare earth exports, Trump hinted at a “massive” tariff upgrade. As a consequence, the S&P 500 was pushed to a 1.7% drop by midday, breaking a 33-day streak of stability. Additionally, the Nasdaq Composite fell by more than 2.5%, marking its most severe plunge since mid-April.

Trump’s comments had a particularly large impact on U.S.-listed shares of China-based firms which saw steep dips, with the iShares MSCI China ETF (MCHI) falling by more than 5%. Conversely, U.S.-based rare earth miners saw an increase in their stocks, as investors bet on heightened demand outside China.

Despite the sharp stock market drop, some investors are viewing this decline as a potential opportunity for investment, especially in technology companies. This is based on the presumption that the latest conflict between the U.S. and China may eventually deescalate.

In addition to the above, the stock market shifts also saw gains for companies like Applied Digital, seeing a rise of 16% due to artificial intelligence data center demand, and pharmaceutical company AstraZeneca after reaching an agreement with the Trump administration to cut drug prices in the U.S. On the other end, Chinese stocks like Alibaba, Baidu, JD.com, and PDD Holdings took a hit, with drops ranging from 5.2% to 8%.