 Shares of Paychex Inc. PAYX, -2.27 edged up 0.1 in premarket trading Wednesday, after the human resources services company reported fiscal fourth-quarter profit and revenue that just topped expectations, while providing an upbeat full-year outlook. Net income for the quarter to May 31 rose to 296.4 million, or 82 cents a share, from 263.0 million, or 73 cents a share, in the year-ago period. 