US Stocks Plunge as Trump Announces 15% Global Tariff Amid AI Sector Concerns

U.S. equity markets faced a significant sell-off following President Trump's announcement of a new 15% global tariff. The Dow Jones Industrial Average plummeted by 800 points as investors reacted to the prospect of aggressive trade protectionism. Pressure on the S&P 500 was further intensified by cooling sentiment and renewed volatility within the AI sector. As risk appetite diminished, gold stocks emerged as a primary beneficiary, with investors seeking refuge in safe-haven assets. This combination of trade policy shifts and tech sector uncertainty has triggered a broad flight from equities. Market participants remain cautious as the potential impact of these tariffs on global supply chains begins to unfold.