Mosaic (MOS) adds 44 cents to $52.06 and options on the stock are actively traded today. 17,000 calls and 4,175 puts so far. The expiring Weekly 52.5 calls, which are 44 cents out-of-the-money and coming off the board today, are the most actives. 3,560 traded against 351 in open interest. The market is 9 to 13 cents. Jan 52.5, Jan 57.5 and next weeks (12/30) 55 calls are the next most actives. Implied volatility is up 6.5 percent to 41.5, as upside call buyers seem to be dominating the flow in the stock during the first two hours of Friday’s session.