(Reuters) - Investors withdrew massive capital out of U.S. equity funds in the week to Sept. 17 as they turned cautious about the market's lofty valuations following the recent rally through a policy rate cut by the Federal Reserve and rushed to lock in profits. According to LSEG Lipper data, investors pulled out a net $43.19 billion from U.S. equity funds in the week, logging their largest weekly net sales since a $50.62 billion weekly outflow in mid-December 2024. The S&P 500 (^GSPC) hit a record high ...