Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Alexion Pharmaceuticals Inc. (NASD: ALXN), where a total volume of 6,098 contracts has been traded thus far today, a contract volume which is representative of approximately 609,800 underlying shares (given that every
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Alexion Pharmaceuticals Inc. (NASD: ALXN), where a total volume of 6,098 contracts has been traded thus far today, a contract volume which is representative of approximately 609,800 underlying shares (given that every
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