Noteworthy Tuesday Option Activity: NXTM, QSII, NAT

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in NxStage Medical Inc (NXTM), where a total of 2,000 contracts have traded so far, representing approximately 200,000 underlying shares. That amounts to about 58.8% of NXTM's average daily trading volume over the past month of 340,355 shares..