Wall Street quietly mixed in premarket, oil prices fall on optimism over U.S.-Iran negotiations

Trading is mixed early Monday and oil prices edged lower on fresh optimism over progress in U.S.-Iran negotiations. Futures for the S&P 500 inched back 0.1% before the opening bell, while futures for the Dow Jones Industrial Average were unchanged. Nasdaq futures ticked up 0.1%. Oil prices fell as talks progressed over an end to [...]