Merck (MRK): Investors purchased almost 18,000 January 48 calls, mostly for $0.30, looking for upside in the stock. MRK rose 0.39 percent to $43.42. (See related story)
Ford Motor (F): More than 16,000 September 10 calls were purchased, mostly for $0.05, as investors looked for the shares to rally. F rose 1.70 percent to $9.57.
Morgan Stanley (MS): More than 30,000 September 17 calls traded, mostly for $0.10, but volume was far below open interest at the strike. MS rose 0.39 percent to $15.57.
MGM Resorts (MGM): Blocks of 6,178 contracts traded in each the September 15 puts and the October 15 puts. It appears a money-losing short position was rolled forward by one month. MGM fell 0.02 percent to $9.76.
