Calls Purchased on Rockwood Holdings

Shares of Rockwood Holdings ROC are higher on the session by 2.62%, currently trading at $57.95. 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 calls on the name today. A short while ago the July 2011 $55.00 call traded 1,200 times on open interest of 9,772 contracts. Overall call volume is now running at 2.07x the daily average with 83% of all calls traded being purchases on the offer. Rockwood Holdings, Inc. is a developer, manufacturer and marketer of specialty chemicals and advanced materials used for industrial and commercial purposes. Rockwood's products consist of inorganic chemicals and solutions and engineered materials.