EBay Inc.’s stock was up 5.5% in extended trading Tuesday after the online marketplace delivered quarterly results that topped analysts’ estimates and issued stout guidance, assuaging for now concerns over its short-term business prospects. The e-commerce company hiked its dividend by two cents and announced a $2 billion stock repurchase program. EBay EBAY, +1.16% rang up fiscal fourth-quarter net income of $728 million, or $1.07 a share, compared with net income of $671 million, or $1.07 a sha...