Notable Thursday Option Activity: ALRM, CHMT, SHLD
August 11, 2016 at 15:45 PM EDT
Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Alarm. om Holdings Inc (ALRM), where a total volume of 20,106 contracts has been traded thus far today, a contract volume which is representative of approximately 2.0 million underlying shares (given that every 1 contract represents 100 underlying shares).