Shares of EntroMedics Inc. (ETRM) are up .12 to 2.13 today.? ETRM is near the middle of the 52 Week range.

Today paper traded 3633 ETRM Jun 2.5 calls for .50.? The ADV is 659 contracts.? The OI is 12191.

The volume went up in one block.? Trade on the strike is over 5200 contracts with buying pushing the IV up 10 points to 293%.? Check the OI tomorrow but with the high IV it looks like buyers continue to plow into these calls pushing the prices higher.

30-day implied volatility is 273%. ? 10-day implied volatility is 44%.? 30 day implied volatility is trading above the 10 Day Historical volatility.

EnteroMedics Inc. (EnteroMedics) is a development- stage medical device company.?