Notable Tuesday Option Activity: ALXN, BLK, AZO
May 29, 2018 at 13:33 PM EDT
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Alexion Pharmaceuticals Inc. (ALXN), where a total volume of 7,485 contracts has been traded thus far today, a contract volume which is representative of approximately 748,500 underlying shares (given that every 1 contract represents 100 underlying shares)..