Wall Street drifted slightly higher Monday after a day of mixed trading. The S&P 500 rose 17.51 points, or 0.3%, to 6,661.21. The Dow Jones Industrial Average rose 68.78 points, or 0.1%, to 46,317.07. The Nasdaq composite rose 107.09 points, or…

Amazon added 1.1% following its 5.1% drop last week, and Microsoft rose 0.6% to recover some of its 1.2% decline. While their moves were modest, they were still two of the strongest forces lifting th…