Shares of Infinity Pharmaceuticals Inc. (INFI) are up .28 to 14.09. INFI is at the lower end of the 52-week range.

Today paper traded 3500 INFI Mar 12 puts at .22.? ADV is 1769 contracts.? The OI is 45 contracts.

The volume went up in one block near the bid.? The trade looks like an opening put seller ahead of earnings in INFI.? The IV is down 1.51 in March after the put sale.? The trader is taking an aggressive stance and selling the $2 OTM prior to earnings.

30-day implied volatility is 59%.?? 10-day implied volatility is 45%.? 30-day implied volatility is trading above the 10-day historical volatility.

Infinity Pharmaceuticals, Inc. (IPI) is a drug discovery and development company.?