Mar 5, 2012 03:15PM Costco (COST) volatility low as shares trends higher on upgrade
Mar 5, 2012 11:38AM Costco (COST) Shares Edge Higher as William Blair Upgrades to Outperform
Oct 6, 2011 07:30AM William Blair Downgrades Costco Wholesale (COST) to Market Perform
Sep 21, 2009 10:48AM Notable Analyst Rating Changes 9/21: WFC, NTAP, MAR, SHO, COST, CELG Upgraded; BK, POT, MOS, AMSC, MO Downgraded
Sep 21, 2009 08:03AM William Blair Upgrades Costco (COST) to Outperform
Sep 3, 2009 10:04AM Morning Movers 9/3: UPI, SVA, CRIS, BNVI, ZUMZ, VICL, MEDQ Higher; AMED, INWK, HOV, FDO, VG Lower
Aug 25, 2009 10:43AM Notable Analyst Rating Changes 8/25: GOOG, COST, RTP, LOW Upgraded; BLK, VALE, CEDC, CMM Downgraded
Aug 25, 2009 09:36AM David Moenning's Daily State of the Markets: 8/25
Aug 25, 2009 07:35AM William Blair Upgrades Costco (COST) to Market Perform