Investing.com - Pfizer (NYSE:PFE) fell by 3.39% to trade at $31.34 by 09:34 (13:34 GMT) on Thursday on the NYSE exchange.
The volume of Pfizer shares traded since the start of the session was $1.46M. Pfizer has traded in a range of $31.28 to $32.25 on the day.
The stock has traded at $33.8800 at its highest and $29.6500 at its lowest during the past seven days.