Mosaic (MOS) loses $2.29 to $54.90 after the company reported earnings after the closing bell Wednesday. The results were in-line with a previous pre-announcement, but potash pricing disappointed. The stock touched a 52-week low of $52.61, but is now up 4.4 percent from those lows. Options volume in Mosaic through Noon ET includes 49,000 calls and 27,000 puts. The top trade is a 9,486-contract block of Oct 62.5 calls at 77 cents on ISE. It’s an opening customer buyer, according to ISEE data. 12,247 traded, which makes it the most actives in Mosaic. A 5,673-contract block of Oct 65 calls traded at 42 cents at the same time as the 62.5s, also on ISE and also an opening buyer. Separately, a 9,000-contract block of Oct 47.5 puts traded at $1.04 on AMEX. A source tells us the block was an outright seller. Looks opening. 10,200 traded. Players are still jockeying for position in anticipation of Mosaic’s next move heading into an Oct 6 Analyst Day and implied volatility has risen 10 percent to 63 on the session.