Mosaic is drawing heavy options activity amid rumors that the fertilizer company will be taken over by agricultural giant Cargill.
The average daily turnover for Mosaic calls has been 10,800 contracts for the past month, but some 46,000 calls traded by Friday afternoon alone at various strikes, according to OptionMonster's tracking systems. MOS shares popped along with that activity, closing the day up 8.55 percent to $43.05.