NEW YORK ( TheStreet) -- Wal-Mart ( WMT) said it has posted three consecutive months of positive U.S. same-store sales, but wouldn't go so far as to say this will equate to an uptick for the third-quarter.. Speaking at Wal-Mart's annual meeting Wednesday, Bill Simon, head of Wal-Mart U.S., noted an increase in traffic at stores, led by its food business. Simon said that the July, August and September momentum doesn't necessarily add up to a quarter. There are still two weeks left to the period, so it is still too early to tell which way the pendulum will swing. Wal-Mart has reported nine consecutive declines in U.S. same-store sales. - Reported by Jeanine Poggi in New York. Follow TheStreet.com on Twitter and become a fan on Facebook.