The downbeat results follow Snap Inc's SNAP.N warning last week on slowing ad demand and a string of mixed earnings reports that have fed into worries that decades-high inflation and aggressive interest rate hikes to quell it are taking a toll on the economy. For a Reuters live blog on U.S., UK and European stock markets, click LIVE/ or type LIVE/ in a news window. Wall Street's three main indexes, however, posted gains for the past three days, fueled by hopes that the Federal Reserve could soon slow down the pace of its monetary policy tightening.