Noteworthy Monday Option Activity: BLUE, CSII, MDR

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in bluebird bio Inc (BLUE), where a total of 2,946 contracts have traded so far, representing approximately 294,600 underlying shares. That amounts to about 68.9% of BLUE's average daily trading volume over the past month of 427,435 shares..
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