Notable Put Options Activity in KLA-Tencor

Shares of KLA-Tencor

are higher on the session by 0.49%, currently trading at $48.93. The stock has been moving largely higher over the past three months and is currently trading above the 50-day moving average. Options traders are focusing on puts today. The strike seeing the heaviest action is the January 2012 $47.00 put, which has traded 3,300 times on open interest of 3,310 contracts. The Jan2012 $49.00 put also traded 1,700 times on 157 contracts. Put volume is outpacing call volume by 7 to 1. KLA-Tencor Corporation is engaged in the design, manufacture and marketing of process control and yield management solutions for the semiconductor and related nanoelectronics industries.