The Dow Jones Industrial Average on Wednesday both crossed and closed above the 20,000 level for the first time, while the S&P 500 and Nasdaq Composite also cruised to records after upbeat earnings releases from heavyweights such as Boeing Co. and optimism over the economy. 
The Dow Jones Industrial Average DJIA, +0.78% surged 155.80 points, or 0.8%, to close at 20,068.51. 
The S&P 500 index SPX, +0.80% gained 18.30 points, or 0.8%, to close at a record 2,298.37. 
The Nasdaq Composite Index COMP, +0.99% finished up 55.38 points, or 1%, at 5,656.34.