New Post Public Reply Private Reply Replies (0) Message Board ← Newer Older → Lucky Jimmy Oct 10, 2017 at 10:44 AM 445 COST +1.75 total advance today 10:30 ET. Costco Wholesale $COST 156.36 Stock hit a High of 156.55 and 155.09 Low with volume of 1,268,768. Newer Older