The day ahead: Friday
* Leaders of the world’s 20 biggest economies conclude their meeting in Pittsburgh.
* U.S. homebuilder KB Home reports third-quarter financial results. Wall Street is looking for a sharply narrower net loss than the company recorded a year earlier.
* New orders for long lasting U.S. manufactured goods probably rose for a second straight month in August, according to a Reuters survey.
* Government data is expected to show sales of newly built U.S. homes rose to their highest level in a year in August.