FILE PHOTO: A street sign for Wall Street is seen outside the New York Stock Exchange (NYSE) in Manhattan, New York City, U.S. December 28, 2016. REUTERS/Andrew Kelly/File Photo
(Reuters) - Investors are leaving exchange-traded funds tied to specific themes, such as artificial intelligence and video gaming, as they flock to funds linked to broad stock-market benchmarks that are hitting record highs.
The run for the exits, however, may slow if the broader market stumbles.
