Noteworthy Tuesday Option Activity: ALT, WMT, EXEL

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Altimmune Inc (ALT), where a total volume of 10,511 contracts has been traded thus far today, a contract volume which is representative of approximately 1.1 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 51.9% of ALT's average daily trading volume over the past month, of 2.0 million shares..