From Crain’s Chicago Business | Wall Street analysts say shares in Walgreen could take a major hit from its split with CVS Caremark.  Analysts say investors are underestimating the amount of business the No. 1 pharmacy chain could lose in its decision to leave Caremark’s benefits management business.

Shares of Walgreen were down down 2.2 percent, to $29.30, in late afternoon trading.

Read the full story: chicagobusiness.com