Investing.com - Merck&Co rose by 3.03% to trade at $76.28 by 03:03 (16:03 GMT) on Friday on the NYSE exchange.
The volume of Merck&Co shares traded since the start of the session was $2.81M. Merck&Co has traded in a range of $74.65 to $76.32 on the day.
The stock has traded at $76.7000 at its highest and $70.9700 at its lowest during the past seven days.