Volume Alert - MRK Stock 51.64 Merck & Company $MRK Hit a high today of 52.32 Closing the day 12/18/15 at 51.64 -1.02 -1.94% With a day low of 51.61 and a total volume of 21,090,859.

MRK Recent Posts: http://investorshangout.com/Merck--Co-Inc-MRK-51867/