Merck & Co Inc [MRK] stock Downgrade by Citigroup analyst, price target now $84
Merck & Co Inc [NYSE: MRK] gained 0.37% or 0.31 points to close at $83.67 with a heavy trading volume of 10366747 shares. It opened the trading session at $83.425, the shares rose to $84.3 and dropped to $83.15, the range by which the price