Costco Wholesale comprises approximately 1.4% of Madrona Financial Services LLC’s holdings, making the stock its 19th largest position. Madrona Financial Services LLC’s holdings in Costco Wholesale were worth $5,708,000 at the end of the most recent quarter. Costco Wholesale Stock Down 0.9%COST stock opened at $917.34 on Thursday. On average, equities analysts anticipate that Costco Wholesale Corporation will post 18.03 earnings per share for the current fiscal year. Receive News & Ratings for Costco Wholesale Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Costco Wholesale and related companies with MarketBeat.com's FREE daily email newsletter.