S&P 500 Gains and Losses Today: Teradyne Stock Plunges as Firm Foresees Tariff Affects
1. Teradyne shares dropped 17.1% due to trade policy concerns. 2. Company guidance reflects potential volatility in semiconductor testing business. 3. S&P 500 and other indexes experienced overall declines on trade tensions. 4. Economic uncertainty is impacting market sentiment and travel demand. 5. Tariff negotiations could affect various sectors, including Teradyne.