Discount retailer Costco (NASDAQ:COST) seeing positive improvement for the third quarter. The company reported fiscal Q3 EPS of $0.88, topping estimates by a penny. That's an increase of 19% from the same period last year.Revenues in the quarter rose 8.2% year-over-year to $22.3 billion, beating estimates of $22.21 billion. The company reported Q3 core comp sales rose 5%, vs. estimates of a 5.7% rise. Prior to today's results, Costco met or beat EPS estimates 6 out of the last 8 quarters, and met or beat revenue estimates in 7 of last 8 quarters.