Notable Wednesday Option Activity: MNKD, GS, VLO

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in MannKind Corp (MNKD), where a total of 35,612 contracts have traded so far, representing approximately 3.6 million underlying shares. That amounts to about 41.2% of MNKD's average daily trading volume over the past month of 8.6 million shares..