Trader Thomas McCauley, left, and specialist Donald Civitanova work on the floor of the New York Stock Exchange, Friday, May 23, 2014. Stocks inched higher early Friday in quiet trading ahead of the Memorial Day weekend.

Richard Drew / AP

Trader Thomas McCauley, left, and specialist Donald Civitanova work on the floor of the New York Stock Exchange, Friday, May 23, 2014. Stocks inched higher early Friday in quiet trading ahead of the Memorial Day weekend.