Investing.com - Merck&Co rose by 3.65% to trade at $72.46 by 09:31 (13:31 GMT) on Tuesday on the NYSE exchange.
The volume of Merck&Co shares traded since the start of the session was $382.58K. Merck&Co has traded in a range of $72.00 to $72.74 on the day.
The stock has traded at $82.1800 at its highest and $67.1800 at its lowest during the past seven days.