Pfizer shares climb on speculation of unit sales

sector��s indexes moved sluggishly. Shares of Pfizer /quotes/comstock/13*!pfe S&P 500 (1 YEAR) In last 2009, Pfizer merged with Wyeth in a mega-merger valued at around $68 billion. On the small-cap side, StemCells /quotes/comstock/15*!stem The biotech...