Puts Purchased on MAKO Surgical Corp. (MAKO)

Shares of MAKO Surgical Corp. MAKO are lower on the session by 4.53%, currently trading at $16.01. The stock had been moving largely higher over the past four 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 August 2011 $17.50 put was purchased 2,000 times, on the offer, for $3.40 on open interest of 2,000 contracts. Overall put volume is now running at 10.47x the daily average with 98% of all puts traded being purchases on the offer. MAKO Surgical Corp. is a medical device company that markets its advanced robotic arm solution and orthopedic implants for minimally invasive orthopedic knee procedures.