Wall St set for muted open as rate worries persist

FILE PHOTO: Traders work on the trading floor at the New York Stock Exchange (NYSE) in Manhattan, New York City, U.S. REUTERS/Andrew Kelly/File Photo

WALL Street was set for a muted open on Monday, pressured by investor fears the Federal Reserve's aggressive monetary tightening will hurt the U.S. economy and a drop in Pfizer after its decision to drop the development of a weight loss drug.

Geopolitical uncertainties also clouded the global mood after an aborted revolt by Russian mercenaries over the weekend raised concerns over the stability of President Vladimir Putin and a potential disruption to Russian oil supply.