Wall Street appears ready to extend big gains

NEW YORK — U.S. stock futures are edging higher as investors await a reading on the services sector and a bevy of earnings reports for further confirmation that the economy is improving.

Stocks soared Monday on upbeat housing news. The Standard & Poor’s 500 index turned positive for the year and the Dow Jones industrials shot up more than 200 points.

On Tuesday, investors are looking to a report on the service economy, and a number of earnings reports from big-name companies like Kraft Foods Inc., CVS Caremark Corp. and Walt Disney Co.

Ahead of the market’s open, Dow Jones industrial average futures are up 8 to 8,367. Standard & Poor’s 500 index futures are unchanged at 902, while Nasdaq 100 index futures are up 4 to 1,426.