Noteworthy Friday Option Activity: RDNT, LSXMK, APO

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in RadNet Inc (RDNT), where a total volume of 3,274 contracts has been traded thus far today, a contract volume which is representative of approximately 327,400 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 69.1% of RDNT's average daily trading volume over the past month, of 474,010 shares..