BJ's Shares Fall 9%

An analyst downgraded shares of BJ's Wholesale Club on Wednesday after rival Costco Wholesale Corp. offered an earnings outlook below Wall Street expectations, citing rising energy costs and plans to refrain from raising prices.Shares of BJ's fell $3.86, or 9.5 percent, to $36.89, while rival Costco declined $8.57, or 11.9 percent, to $63.43.