Notable Friday Option Activity: AJRD, CRSR, BMRN

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Aerojet Rocketdyne Holdings Inc (AJRD), where a total volume of 4,437 contracts has been traded thus far today, a contract volume which is representative of approximately 443,700 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 92.3% of AJRD's average daily trading volume over the past month, of 480,820 shares..