Wall Street open: stocks dip as investors weigh AI valuations, SC tariff hearings

Core Viewpoint - Wall Street indices experienced a modest decline as investors reacted to high valuations in artificial intelligence stocks and the Supreme Court's deliberation on Trump-era tariffs [1] Group 1: Market Performance - The S&P 500 index decreased by 0.2% [1] - The Nasdaq Composite fell by 0.3% [1] - The Dow Jones Industrial Average remained nearly unchanged [1]