Agrium (AGU, news, chart, volatility) is up $1.12 to $37.53. Fertilizer stocks are rallying ahead of an earnings report from Mosaic (MOS) due out today after the closing bell. 3,800 AGU Jan 40s have traded, with about 80 percent hitting offerside. Jan and Feb 35 puts are also actively traded. Implied volatility is up to 75, from about 68 late Friday.