BJ's Wholesale Club announced the pricing of its initial public offering late Wednesday at $17 a share, on the high end of its range. The offering of more than 37.5 million shares would raise $637.5 million. Shares are expected to begin trading Thursday on the New York Stock Exchange under the ticker symbol "BJ." The company, a rival of Costco Wholesale Corp., operates 215 warehouse clubs across 16 states. Bank of America Merrill Lynch, Deutsche Bank Securities, Goldman Sachs & Co. and J.P. Morgan are serving as joint lead book-runners.