3 Reasons to Buy Merck for the Long Term By: Benzinga via Benzinga July 31, 2014 at 15:30 PM EDT Merck (NYSE: MRK) is a blue chip "Big Pharma" stock that is up for the last week, month, quarter, six months, and year of ... Read More >> Related Stocks: Merck & Co SPDR S&P 500 ETF Trust