New Post Public Reply Private Reply Replies (0) Message Board ← Newer Older → Lucky Jimmy May 26, 2017 at 10:38 AM 400 COST +3.52 total advance today 10:29 ET. Costco Wholesale $COST 178.25 Stock hit a High of 180.29 and 177.53 Low with volume of 1,710,373. Newer Older