EBay Inc (EBAY.O) on Wednesday joined Wal-Mart Stores Inc (WMT.N) in cutting its outlook for the all-important holiday season, suggesting that the fourth quarter may turn out to be weaker than some analysts predicted as recently as last week. EBay and Wal-Mart blamed divergent factors such as food stamp reductions and unfavorable search-engine optimization for the lower outlooks. “EBay, especially on the marketplaces side, is actually suffering from company-specific setbacks,” Wedbush Securities analyst Gil Luria said.