Wall Street has begun this week by extending their gains ahead of the Easter break with investors increasingly positive on the outlook for corporate earnings and the world's biggest economy.
Over four trading days last week, the Dow Jones Industrial Average gained 2.38 percent, the Standard & Poor's 500 index rose 2.71 percent, while the Nasdaq Composite index added 2.39 percent. Markets were closed on Good Friday.
As of Thursday's close, the S&P 500 was ahead so far in 2014, up 1.49 percent, though the Dow and the Nasdaq were weaker, down 0.34 percent and 1.62 percent respectively.
In afternoon trading in New York Monday, the Dow added 0.25 percent, the S&P 500 increased 0.32 percent, while the Nasdaq advanced 0.52 percent.
Companies including Apple, Facebook, Netflix, McDonald's and Microsoft are scheduled to report earnings this week. So are Ford and General Motors.
So far the beginning of the US quarterly earnings season has been considered positive overall, though there have been some exceptions too such as IBM. And last week Federal Reserve Chairman Janet Yellen also reassured investors the central bank will keep the easy money flowing.