said same-store sales in October rose 2.4% excluding fuel, a result that topped its internal estimates.
The world's largest retailer said Thursday that same-store sales rose 2.5% including fuel.
Wal-Mart had forecast an increase of 1% to 2% for same-store sales in October.
Total sales for the four weeks ended Oct. 31 increased 2.3% to $28.6 billion from almost $28 billion a year earlier.
Wal-Mart said in a press release it expects U.S. same-store sales in November to rise between 1% and 3%.
"Our underlying business in the United States and around the world remains strong," Wal-Mart said. "While there remain some uncertainties with the global economy, we believe falling gas prices could help customers as we enter this holiday season."
The retailer said separately it also plans each week over the next seven weeks to introduce new savings that will save consumers an estimated $200 million.