UPDATE 2-U.S.-based stock funds attract $18.1 bln in latest week -Lipper

By Sam Forgione NEW YORK, Sept 19 (Reuters) - Investors in funds based in the United States poured $18.1 billion into stock funds in the latest week as global markets rallied on expectations the Federal Reserve would maintain its easy-money policies, data from Thomson Reuters' Lipper service showed on Thursday. The inflows into stock funds over the week ended Sept. 18 were the biggest since early January. Investors have committed nearly $31 billion to stock funds in the latest two weeks