A trader works on the floor of the New York Stock Exchange (NYSE) at the opening bell in New York City, on April 7, 2025.Investors ran for cover this week as artificial intelligence fears hit stocks, driving the 10-year Treasury below 5%. The benchmark yield stayed below 5% on Friday, after falling beneath that level Thursday for the first time in a month as investors continued to express misgivings over the massive debt being taken on by technology companies to finance their build out of AI networks. Tech ...