US stocks edge higher to another record close amid trade-war optimism

Reuters / Brendan McDermidUS stocks continued their record run and closed higher on Tuesday, driven by trade optimism between the US and China.The S&P 500 and Nasdaq composite indexes closed at record highs, while the Dow Jones industrial average ended the day in the red after the index provider announced a shake-up to the 124 year old index.The US and China held a phone call on Monday eveningto review the phase one trade deal and commit to seeing the deal through, easing investor concerns a