Calls Purchased on Nanometrics

Shares of Nanometrics NANO are higher on the session by 7.54%, currently trading at $21.26. The stock has been moving largely higher over the past six months and is currently trading above the 50-day moving average. Options traders are buying puts on the name today. A short while ago the July 2011 $21 call traded 393 times on open interest of 250 contracts. The July $22 call also traded 236 times on zero open interest. Overall call volume is now running at 6.75x the daily average with 85% of all calls traded being purchases on the offer. Nanometrics Incorporated is a supplier of advanced process control metrology systems used primarily in the manufacturing of semiconductors, solar photovoltaics, high-brightness light emitting diodes, advanced wafer scale packaging, as well as by customers in the silicon wafer and data storage industries.