Investing.com - Merck&Co rose by 3.21% to trade at $68.55 by 09:33 (13:33 GMT) on Tuesday on the NYSE exchange.
The volume of Merck&Co shares traded since the start of the session was $425.24K. Merck&Co has traded in a range of $68.23 to $68.99 on the day.
The stock has traded at $76.0900 at its highest and $65.2900 at its lowest during the past seven days.