Global shares tumble on global growth concerns; Treasury yields fall

By Sam Forgione NEW YORK (Reuters) - Stock indexes worldwide tumbled on Monday, led by banking stocks in Europe and technology stocks on Wall Street on persisting fears of a global economic slowdown, while benchmark 10-year Treasury yields hit their lowest in a year on demand for assets deemed less risky. Wall Street continued Friday's technology-led selloff, with the benchmark S&P 500 stock index falling more than 2 percent.