 Shares of shoe and accessories seller Genesco Inc. GCO, -7.26 dropped 7.0 in premarket trading Friday, after the parent of store brands including Journeys and Johnston Murphy reported fiscal third-quarter profit and sales that beat expectations but slashed its full-year earnings outlook, citing a sluggish start to November, higher promotional activity and continued cost pressures. Net income for the quarter to Oct. 29 fell to 20.4 million, or 1.65 a share, from 32.9 million, or 2.25 a share, in the year-ago period. 