Dow, S&P 500, Nasdaq futures waver as Iran officials reject negotiation
US inventory futures slipped Tuesday pausing after a pointy rebound on Wall Street that was driven by growing optimism round a possible easing of tensions between Washington and Tehran. Contracts linked to the S&P 500 (ES=F) fell 0.2%, the Dow Jones Industrial Average (YM=F) dropped 0.3%. While the Nasdaq 100 futures (NQ=F) slipped 0.1%. Oil…