Costco’s sales figures led to differing takes from some analysts about whether the retail giant’s stock is too expensive.

Summer holiday shopping reignited Costco Wholesale’s hot streak. The retailer said Wednesday that its net sales rose 8% year over year in June to $26.4 billion, accelerating from May’s 6.8% gain. The increase snaps a string of five consecutive months of slowing sales growth.

Costco Wholesale (NASDAQ:COST) reported total sales for the retail month of June were up 8% to accelerate from the 6.8% pace seen in May. Comparable sales for the five-week period when adjusted for gasoline prices and foreign exchange increased by 6.