Notable Put Options Activity in Companhia Siderurgica Nacional

Shares of Companhia Siderurgica Nacional SID are lower on the session by 0.56%, currently trading at $8.81. The stock has been moving largely lower over the past three months and is currently trading below the 50-day moving average. Options traders are focusing on puts today. A short while ago the September 2011 $9.00 put traded 1,300 times on open interest of 4,729 contracts. Companhia Siderurgica Nacional is an integrated steel producer in Brazil and Latin America. The company focuses on mining, steel production, logistics, cement and energy.