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Trump's Social Media Post Triggers $2 Trillion Stock Market Plunge
Source: cnbc.com
Published on October 12, 2025
Updated on October 12, 2025

Trump's Social Media Post Sparks $2 Trillion Stock Market Plunge
A single social media post from former President Donald Trump sent shockwaves through the stock market on Friday, erasing $2 trillion in market value. The dramatic downturn was fueled by investor fears of escalating trade tensions with China, highlighting the enduring influence of Trump's trade policies even after his presidency.
In his post on Truth Social, Trump accused China of being "hostile" and controlling rare earth metals, critical components for semiconductors, electric vehicles, and advanced missiles. He hinted at potential plans for "a massive increase of tariffs on Chinese products," a statement that immediately spooked investors. The S&P 500 fell 2.7%, marking its worst day since early April, while the tech-heavy Nasdaq Composite dropped 3.56%, its steepest decline in months.
Trade Tensions and Market Reaction
The market's sharp reaction underscores the lingering uncertainty surrounding U.S.-China trade relations. Many investors had hoped for progress in trade talks, with expectations of a potential meeting between Trump and Chinese leader Xi Jinping at the upcoming Asia-Pacific Economic Cooperation summit. However, Trump's post shattered those hopes, reigniting fears of a trade war that could disrupt global supply chains and economic stability.
"The market had grown accustomed to the existing 40% tariff rate on China, but the threat of increased tariffs was a wake-up call," said Jay Woods, chief market strategist at Freedom Capital Markets. "Investors are now recalibrating their expectations, and the sell-off reflects the uncertainty ahead.")
Tech Stocks and Chipmakers Hit Hardest
The tech sector, heavily reliant on trade with China, was particularly hard hit. The Nasdaq Composite, which had reached an all-time high before Trump's post, dropped 3.56%. Chipmakers like Nvidia and AMD led the decline, with Nvidia falling 5% and AMD dropping nearly 8%. Apple and Tesla also saw significant losses, down 3% and 5%, respectively.
"Chipmakers are at the frontlines of this trade dispute," said Emily Carter, an analyst at TechInsights. "Their supply chains are deeply intertwined with China, and any disruption could have severe consequences for their operations and profitability.")
China's Control Over Rare Earth Metals
Adding to the tension, China recently tightened its control over the rare earth metals market, which it dominates with approximately 70% of the global supply. Beijing now requires entities to obtain licenses for exports and has imposed restrictions on companies using these metals for military applications. This move has heightened concerns about the U.S. supply of these critical materials, which are essential for semiconductors, electric vehicles, and advanced missiles.
"The Trump administration has been trying to boost the U.S. supply of rare earth metals, but it's a complex and lengthy process," said Michael Rogers, a geopolitical analyst. "In the meantime, any disruption in the supply chain could have significant implications for industries ranging from tech to defense.")
Potential for Further Market Turmoil
Trump's initial post was followed by threats of 100% tariffs on China and plans to impose export controls on "any and all critical software." These new duties are set to begin next month, raising the specter of further market volatility. However, some analysts caution against overreacting, noting that many tariffs threatened in the past were later reduced through negotiations.
"It's best to wait and see if Trump acts on his threats," said Woods. "The market has proven resilient in the face of geopolitical tensions before, and this could be another opportunity for investors to capitalize on a knee-jerk sell-off.")
Is This a Buying Opportunity?
Despite the recent decline, the S&P 500 is still up more than 11% for the year. Some analysts see the current market conditions as a potential buying opportunity, particularly for long-term investors. Stock market futures will open for trading on Sunday evening, providing an early indication of how the market will react in the coming week. The bond market will be closed on Monday for Columbus Day.
"The ongoing government shutdown and global conflicts haven't stopped the seemingly unstoppable AI trade," said Woods. "Investors should remain vigilant but also recognize that volatility can create opportunities.")