Puts Purchased on Arch Coal, Inc.

Shares of Arch Coal, Inc. ACI are lower on the session by 1.37%, currently trading at $29.48. The stock has been moving largely lower over the past three months and is currently trading below the 50-day and 200-day moving averages. Options traders are buying puts on the name today. A short while ago the June 2011 $30.00 put was purchased 4,000 times, on the offer, on open interest of 963 contracts. Overall put volume is now running at 3.76x the daily average with 77% of all puts traded being purchases on the offer. Arch Coal, Inc. is a coal producer company. During the year ended December 31, 2010, the company sold 162.8 million tons of coal, including approximately 6.9 million tons of coal it purchased from third parties.