NEW YORK (AP) — Stocks fell broadly in morning trading on Wall Street Tuesday, extending a slump for the major indexes as investors continue to worry about the state of the economy. The S&P 500 fell 1.8% and more than 95% of stocks in the benchmark index were in the red. The Dow Jones Industrial Average fell 2% and the Nasdaq fell 1.3%. Small-company stocks fell sharply in a signal that investors were worried about economic growth. Energy companies had some of the biggest losses as U.S. crude oil prices fell 5%. Banks also slipped along with falling bond yields.