Shares of Merck & Co. Inc. MRK, -0.67% dropped 0.67% to $107.52 Friday, on what proved to be an all-around poor trading session for the stock market, with the S&P 500 Index SPX, -1.22% falling 1.22% to 4,450.32 and Dow Jones Industrial Average DJIA, -0.83% falling 0.83% to 34,618.24.
Merck & Co. Inc. closed $12.13 short of its 52-week high ($119.65), which the company achieved on May 3rd.
The stock demonstrated a mixed performance when compared to some of its competitors Friday, as Johnson & Johnson JNJ, -1.40% fell 1.40% to $161.45 and Pfizer Inc. PFE, -0.23% fell 0.23% to $34.07.
Trading volume (9.1 M) eclipsed its 50-day average volume of 7.1 M.